feat: add helmfile diff workflow, move repo name to build/publish function

[sam1357]

No description provided.

[github-actions]

🎯 Helmfile Diff (prod)

✅ No changes detected

Adding repo chartmuseum https://chartmuseum.masterofcubesau.com
"chartmuseum" has been added to your repositories

Comparing release=macroservices, chart=chartmuseum/generic-app, namespace=macroservices-prod
macroservices-prod, macroservices-backend, Deployment (apps) has changed, but diff is empty after suppression.
macroservices-prod, macroservices-frontend, Deployment (apps) has changed, but diff is empty after suppression.

Affected releases are:
  macroservices (chartmuseum/generic-app) UPDATED

Identified at least one change