chore: update license header

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2020-03-25 05:13:07,255 synthtool > Executing /tmpfs/src/git/autosynth/working_repo/synth.py.
2020-03-25 05:13:07,307 synthtool > Ensuring dependencies.
2020-03-25 05:13:07,899 synthtool > Cloning googleapis.
2020-03-25 05:13:08,729 synthtool > Pulling Docker image: gapic-generator-python:latest
latest: Pulling from gapic-images/gapic-generator-python
68ced04f60ab: Pulling fs layer
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5f54ab71eb0e: Download complete
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3f4a9382f7a3: Verifying Checksum
3f4a9382f7a3: Download complete
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Digest: sha256:b84796906d2f7f00b60563017b64b394320064d804f54a05900a001e3638e47b
Status: Downloaded newer image for gcr.io/gapic-images/gapic-generator-python:latest
2020-03-25 05:13:15,045 synthtool > Generating code for: google/cloud/gaming/v1beta.
2020-03-25 05:13:22,387 synthtool > Generated code into /tmpfs/tmp/tmph1qzzd_b.
2020-03-25 05:13:22,413 synthtool > No replacements made in **/*_pb2.py for pattern (\# -\*- coding: utf-8 -\*-\n)(\# Generated by the protocol buffer compiler\.  DO NOT EDIT!.*?import sys), maybe replacement is no longer needed?
2020-03-25 05:13:22,415 synthtool > No replacements made in **/*_pb2_grpc.py for pattern (\# Generated by the gRPC Python protocol compiler plugin. DO NOT EDIT!)
(import grpc), maybe replacement is no longer needed?
2020-03-25 05:13:22,417 synthtool > Replaced 'google-cloud-gaming' in google/cloud/gaming_v1/services/game_server_deployments_service/client.py.
2020-03-25 05:13:22,418 synthtool > Replaced 'google-cloud-gaming' in google/cloud/gaming_v1/services/game_server_configs_service/client.py.
2020-03-25 05:13:22,419 synthtool > Replaced 'google-cloud-gaming' in google/cloud/gaming_v1/services/realms_service/client.py.
2020-03-25 05:13:22,419 synthtool > Replaced 'google-cloud-gaming' in google/cloud/gaming_v1/services/game_server_clusters_service/client.py.
2020-03-25 05:13:22,423 synthtool > Replaced '    start_time\\|-------\\[cron job\\]-------\\[cron job\\]-------\\[cron\n    job\\]---\\|end_time cron job: cron spec start time \\+ duration' in google/cloud/gaming_v1/types/common.py.
.coveragerc
.flake8
.github/CONTRIBUTING.md
.github/ISSUE_TEMPLATE/bug_report.md
.github/ISSUE_TEMPLATE/feature_request.md
.github/ISSUE_TEMPLATE/support_request.md
.github/PULL_REQUEST_TEMPLATE.md
.github/release-please.yml
.gitignore
.kokoro/build.sh
.kokoro/continuous/common.cfg
.kokoro/continuous/continuous.cfg
.kokoro/docs/common.cfg
.kokoro/docs/docs.cfg
.kokoro/presubmit/common.cfg
.kokoro/presubmit/presubmit.cfg
.kokoro/publish-docs.sh
.kokoro/release.sh
.kokoro/release/common.cfg
.kokoro/release/release.cfg
.kokoro/trampoline.sh
CODE_OF_CONDUCT.md
CONTRIBUTING.rst
LICENSE
MANIFEST.in
docs/_static/custom.css
docs/_templates/layout.html
docs/conf.py.j2
noxfile.py.j2
renovate.json
setup.cfg
2020-03-25 05:13:22,508 synthtool > Replaced 'bigquery/docs/generated' in .gitignore.
2020-03-25 05:13:22,508 synthtool > Replaced '\\["2\\.7", ' in noxfile.py.
2020-03-25 05:13:22,509 synthtool > Replaced '"3.5", ' in noxfile.py.
2020-03-25 05:13:22,509 synthtool > Replaced 'ignore = .*' in .flake8.
Running session blacken
Creating virtual environment (virtualenv) using python3.6 in .nox/blacken
pip install black==19.3b0
black docs google tests noxfile.py setup.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_clusters_service/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/docs/conf.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_clusters_service/transports/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_clusters_service/pagers.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_configs_service/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_clusters_service/transports/base.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_configs_service/pagers.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_configs_service/transports/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_configs_service/transports/base.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_clusters_service/transports/grpc.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_deployments_service/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_clusters_service/client.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_configs_service/client.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_configs_service/transports/grpc.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_deployments_service/transports/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_deployments_service/pagers.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/realms_service/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_deployments_service/transports/base.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/realms_service/pagers.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/realms_service/transports/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/realms_service/transports/base.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_deployments_service/transports/grpc.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/__init__.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/realms_service/client.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/realms_service/transports/grpc.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/game_server_clusters_service.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/services/game_server_deployments_service/client.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/game_server_configs_service.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/game_server_configs.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/game_server_deployments_service.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/common.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/realms_service.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/game_server_clusters.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/game_server_deployments.py
reformatted /tmpfs/src/git/autosynth/working_repo/google/cloud/gaming_v1/types/realms.py
reformatted /tmpfs/src/git/autosynth/working_repo/noxfile.py
reformatted /tmpfs/src/git/autosynth/working_repo/tests/unit/gaming_v1/test_game_server_configs_service.py
reformatted /tmpfs/src/git/autosynth/working_repo/tests/unit/gaming_v1/test_realms_service.py
reformatted /tmpfs/src/git/autosynth/working_repo/tests/unit/gaming_v1/test_game_server_clusters_service.py
reformatted /tmpfs/src/git/autosynth/working_repo/tests/unit/gaming_v1/test_game_server_deployments_service.py
All done! ✨ 🍰 ✨
42 files reformatted, 2 files left unchanged.
Session blacken was successful.
2020-03-25 05:13:27,484 synthtool > Wrote metadata to synth.metadata.