Add static-analyzer workflow

[wdeconinck]

💣💥☠️ Static Analyzer Report ☠️💥💣
https://sites.ecmwf.int/docs/atlas/static-analyzer/PR-286

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.87%. Comparing base (f537250) to head (1a8871d).
Report is 47 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #286      +/-   ##
===========================================
- Coverage    79.48%   78.87%   -0.62%     
===========================================
  Files          881      885       +4     
  Lines        67691    59475    -8216     
===========================================
- Hits         53807    46909    -6898     
+ Misses       13884    12566    -1318     

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🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[github-actions]

Private downstream CI failed.
Workflow name: private-downstream-ci
View the logs at https://github.com/ecmwf/private-downstream-ci/actions/runs/15277817077.

[github-actions]

Private downstream CI succeeded.
Workflow name: private-downstream-ci
View the logs at https://github.com/ecmwf/private-downstream-ci/actions/runs/15279474642.

[github-actions]

Private downstream CI succeeded.
Workflow name: private-downstream-ci
View the logs at https://github.com/ecmwf/private-downstream-ci/actions/runs/15300474330.

[github-actions]

Private downstream CI failed.
Workflow name: private-downstream-ci
View the logs at https://github.com/ecmwf/private-downstream-ci/actions/runs/15303450302.