chore: improve helm-chart helper template

[kondracek-nr]

Description

Type of change

• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• New feature / enhancement (non-breaking change which adds functionality)
• Security fix
• Bug fix (non-breaking change which fixes an issue)

Checklist:

• Documentation has been updated
• This change requires changes in testing:
  • unit tests
  • E2E tests

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.74%. Comparing base (577fdb2) to head (2d3d5a7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #473   +/-   ##
=======================================
  Coverage   68.74%   68.74%           
=======================================
  Files          53       53           
  Lines        3513     3513           
=======================================
  Hits         2415     2415           
  Misses        863      863           
  Partials      235      235           

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