Respect quiet period when triggering builds

[jangalda-nsc]

Fixes an issue where builds are triggered immediately on CHECK_RUN events. Previously, ignoring the quiet period could cause multiple builds to run in parallel.

According to ParameterizedJobMixIn.scheduleBuild2 docstring:

quietPeriod – seconds to wait before starting; use -1 to use the job’s default settings

Testing done

• Automated test suite executed locally

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed

[timja]

Testing done
Automated test suite executed locally

Can you run this in your instance and verify it solves the issue please?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.64%. Comparing base (803edab) to head (866aef9).
⚠️ Report is 112 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #519      +/-   ##
============================================
- Coverage     71.80%   71.64%   -0.17%     
- Complexity      162      163       +1     
============================================
  Files            16       16              
  Lines           532      536       +4     
  Branches         51       53       +2     
============================================
+ Hits            382      384       +2     
  Misses          124      124              
- Partials         26       28       +2     

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[jangalda-nsc]

I've tested the change on Jenkins instance, and it works - build was triggered after quiet period

[jangalda-nsc]

@timja could you please check this PR?