DEVOPS-1077: Fix concurrency group to use github.ref instead of github.head_ref

[RomFloreani]

DEVOPS-1077 - auto-cancel workflow upon new push to a branch
Change the workflow concurrency group key from github.head_ref || github.run_id to github.ref.

Part of DEVOPS-1077: change-group-concurrency

Authored using a powershell script with the help of CO-Pilot.

[Copilot]

Pull request overview

Updates GitHub Actions workflow concurrency configuration to use the full github.ref value for concurrency grouping, aligning behavior across pull_request and push triggers and addressing DEVOPS-1077.

Changes:

• Switched the concurrency group key from ${{ github.head_ref || github.run_id }} to ${{ github.ref }} in workflow concurrency groups.
• Kept cancel-in-progress: true so newer runs on the same ref supersede in-progress runs for the same workflow.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.github/workflows/security_scan.yml	Updates concurrency group to use github.ref for consistent per-ref grouping.
.github/workflows/python_analysis.yml	Updates concurrency group to use github.ref for consistent per-ref grouping.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.70%. Comparing base (324ac4f) to head (441a0e6).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #208      +/-   ##
===========================================
- Coverage    85.95%   85.70%   -0.26%     
===========================================
  Files           19       19              
  Lines         1196     1196              
  Branches       155      155              
===========================================
- Hits          1028     1025       -3     
- Misses         127      129       +2     
- Partials        41       42       +1     

see 1 file with indirect coverage changes

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