feat: Delegate -f/--values files to Helm's secrets:// getter when possible, avoiding wrapper-created decrypted files.

[jkroepke]

What this PR does / why we need it:

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged):

• fixes #

Special notes for your reviewer:

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• the CHANGELOG.md release notes have been updated to reflect any significant (and particularly user-facing) changes introduced by this PR

[codecov]

Codecov Report

❌ Patch coverage is 85.71429% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.37%. Comparing base (19c28c6) to head (869da87).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
scripts/commands/helm.sh	85.71%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #793      +/-   ##
==========================================
- Coverage   86.46%   86.37%   -0.10%     
==========================================
  Files          22       22              
  Lines         872      888      +16     
==========================================
+ Hits          754      767      +13     
- Misses        118      121       +3     

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