refactor(macrobench): share helm args and update cloudbuild config

[zhixiangli]

• Extract shared helm arguments to shared_workload_helm_args in lib.sh
• Update run_workload.sh and seed_checkpoint.sh to use shared helm args
• Update ingest.sql to support non-UUID build IDs
• Pass additional parameters (_IMAGE, _RANKS_PER_NODE, _MACHINE_TYPE) in macrobenchmarks-cloudbuild.yaml

[gemini-code-assist]

Code Review

This pull request refactors the Helm installation scripts for macrobenchmarks by extracting shared Helm arguments into a helper function, reducing duplication across scripts. It also updates the SQL query in ingest.sql to support non-UUID build IDs and adds missing parameters to the Cloud Build configuration. Feedback is provided regarding a potential shell parsing issue with backslash escaping in lib.sh.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.68%. Comparing base (a38076b) to head (3b83574).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #940   +/-   ##
=======================================
  Coverage   89.68%   89.68%           
=======================================
  Files          16       16           
  Lines        3579     3579           
=======================================
  Hits         3210     3210           
  Misses        369      369           

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