Enable CodeQL Scan

[rkm]

Proposed Changes

... since LGTM is no more.

Also split java helper script out into separate parts.

Types of changes

What types of changes does your code introduce? Tick all that apply.

• Bugfix (non-breaking change which fixes an issue)
• New Feature (non-breaking change which adds functionality)
• Breaking Change (fix or feature that would cause existing functionality to not work as expected)
• Documentation-Only Update (if none of the other choices apply)
  • In this case, ensure that the message of the head commit from the source branch is prefixed with [skip ci]

Checklist

By opening this PR, I confirm that I have:

• Reviewed the contributing guidelines for this repository
• Ensured that the PR branch is in sync with the target branch (i.e. it is automatically merge-able)
• Updated any relevant API documentation
• Created or updated any tests if relevant
• Created a news file
  • NOTE: This must include any changes to any of the following files: default.yaml, any of the RabbitMQ server configurations, GlobalOptions.cs
• Listed myself in the CONTRIBUTORS file 🚀
• Requested a review by one of the repository maintainers

Issues

[github-advanced-security]

You have successfully added a new CodeQL configuration /language:python. As part of the setup process, we have scanned this repository and found 5 existing alerts. Please check the repository Security tab to see all alerts.

[github-advanced-security]

You have successfully added a new CodeQL configuration /language:csharp. As part of the setup process, we have scanned this repository and found no existing alerts. In the future, you will see all code scanning alerts on the repository Security tab.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.08 ⚠️

Comparison is base (b65ea66) 67.95% compared to head (2fd6a69) 67.87%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1496      +/-   ##
==========================================
- Coverage   67.95%   67.87%   -0.08%     
==========================================
  Files         185      185              
  Lines        6544     6544              
==========================================
- Hits         4447     4442       -5     
- Misses       2097     2102       +5     

see 3 files with indirect coverage changes

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[github-advanced-security]

You have successfully added a new CodeQL configuration /language:java. As part of the setup process, we have scanned this repository and found no existing alerts. In the future, you will see all code scanning alerts on the repository Security tab.