test: validate pepr build generates a helm install-able chart

[btlghrants]

Description

Adds workflow to validate that deploying a Pepr Module via helm install works.

Related Issue

Relates to #1514

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Other (security config, docs update, etc)

Checklist before merging

• Unit, Journey, E2E Tests, docs, adr added or updated as needed
• Contributor Guide Steps followed

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.02%. Comparing base (a6360ac) to head (3249eb7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1520   +/-   ##
=======================================
  Coverage   79.02%   79.02%           
=======================================
  Files          40       40           
  Lines        1735     1735           
  Branches      413      414    +1     
=======================================
  Hits         1371     1371           
+ Misses        362      334   -28     
- Partials        2       30   +28     

see 7 files with indirect coverage changes

[cmwylie19]

Nice!