fix(pullrequests): inherit all properties from original layer in pr layer

[LucasMrqes]

Layers generated during the PR / MR flow do not inherit all properties from the original layer. Especially, Terragrunt and OpenTofu setup properties are not inherited, breaking the layer plan/apply.

To prevent this from happening again, I added a small test to check that a layer generated from a PR has the same spec as the original one (except for branch and autoApply field which may be different)

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.91%. Comparing base (d8e1149) to head (c2d9a4d).

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #539      +/-   ##
==========================================
+ Coverage   43.88%   43.91%   +0.03%     
==========================================
  Files          78       78              
  Lines        5578     5581       +3     
==========================================
+ Hits         2448     2451       +3     
  Misses       2922     2922              
  Partials      208      208              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.