fix(seer): Check quotas before starting seer scanner task

[roaga]

Checks for available quota before starting the seer scanner task in order to reduce task volume. Billing team has made changes to the quotas endpoint to be prepared for the volume.

Also sets default for scanner automation setting to False to manage volume further.

[codecov]

Codecov Report

Attention: Patch coverage is 93.10345% with 2 lines in your changes missing coverage. Please review.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...try/integrations/utils/issue_summary_for_alerts.py	85.71%	1 Missing ⚠️
src/sentry/seer/issue_summary.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #93403      +/-   ##
==========================================
+ Coverage   84.34%   88.00%   +3.66%     
==========================================
  Files       10288    10291       +3     
  Lines      593175   593523     +348     
  Branches    23031    23031              
==========================================
+ Hits       500301   522329   +22028     
+ Misses      92442    70762   -21680     
  Partials      432      432              

[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ OperationalError: connection to server at "127.0.0.1", port 6432 failed: FATAL: no more connections allowed (max_client_conn) digests:sentry.tasks.digests.deliver_digest View Issue
• ‼️ OperationalError: OperationalError('server closed the connection unexpectedly\n\tThis probably means the server terminated abnormally\n\tbefore or while processing the request.\n') sentry.tasks.post_process.post_process_group View Issue

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