fix: stop overwriting index.yaml in action

This PR resolves the issue of the index being overwritten by the helm-releaser-action.

I've also restored the index.yaml manually in this commit to the one generated at the v0.6.8 release.

## Note

The current index.yaml doesn't point to the releases created by the action, but the ones generated using the script (which shouldn't cause any issues as long as the releases and the dist folder are in place).

On the next releases, it should automatically populate the index with the GitHub release URLs. Don't delete the releases generated by the action.

.github/configs/cr.yaml

@@ -0,0 +1,6 @@
+## Reference: https://github.com/helm/chart-releaser
+index-path: "./index.yaml"
+
+# Enable automatic generation of release notes using GitHubs release notes generator.
+# see: https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes
+generate-release-notes: true

.github/workflows/helm-release.yml

@@ -29,5 +29,7 @@ jobs:
 
       - name: Run chart-releaser
         uses: helm/chart-releaser-action@v1.5.0
+        with:
+          config: "./.github/configs/cr.yaml"
         env:
           CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"