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### Updating meta-information for bleeding-edge SNAPSHOT release.

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chore: remove check for flatten plugin

We have had the check for the flatten-maven-plugin in each
Cloud Java client repository. However, the behavior of the plugin
has been stable and its not each repository's responsibility to
assert the plugin's behavior. A new check is going to be added at
the googleapis/java-shared-config repository to assert the
plugin's behavior when we upgrade its version.
Source-Link: https://togithub.com/googleapis/synthtool/commit/9266ddc3b17fc15f34d2fb88ce8c5f1a4bfe64b0
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:ae72564aa9c368b9ccd96f4af21f87889fd83b9e60635b80844deb5a2ccd08aa

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [io.grpc:grpc-bom](https://togithub.com/grpc/grpc-java) | `1.50.1` -> `1.50.2` | [![age](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.50.2/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.50.2/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.50.2/compatibility-slim/1.50.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.50.2/confidence-slim/1.50.1)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>grpc/grpc-java</summary>

### [`v1.50.2`](https://togithub.com/grpc/grpc-java/releases/tag/v1.50.2)

##### Bug fixes

gcp-observability: Supports period(.) in the service name part of regular expression for a fully-qualified method to accept "package.service"

</details>

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.easymock:easymock](http://easymock.org) ([source](https://togithub.com/easymock/easymock)) | `4.3` -> `5.0.1` | [![age](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/compatibility-slim/4.3)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/confidence-slim/4.3)](https://docs.renovatebot.com/merge-confidence/) |

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### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

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## [2.8.23](https://togithub.com/googleapis/java-core/compare/v2.8.22...v2.8.23) (2022-10-24)


### Dependencies

* Update dependency io.grpc:grpc-bom to v1.50.2 ([#990](https://togithub.com/googleapis/java-core/issues/990)) ([42b1081](https://togithub.com/googleapis/java-core/commit/42b108100173041925cc705f596f388bab26d954))
* Update dependency org.easymock:easymock to v5 ([#980](https://togithub.com/googleapis/java-core/issues/980)) ([64be350](https://togithub.com/googleapis/java-core/commit/64be350d3713af1a95ca51997194a15c7292f7ae))

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