Release a Helm chart to a GitHub Pages OCI-compatible chart repository with chart-releaser

Steps

1. Set up a `gh-pages` branch in your repository to serve as the Helm chart repository index
2. Add the `helm/chart-releaser-action` GitHub Actions workflow to your repo; configure it with `charts_dir` pointing to your charts directory and a GitHub token secret
3. On each push to the default branch, the action packages changed charts, uploads them as GitHub release assets, and updates the `index.yaml` on `gh-pages`
4. Consumers add your chart repo with `helm repo add <name> https://<your-org>.github.io/<repo>` and install with `helm install <release> <name>/<chart>`
5. Bump `version` in `Chart.yaml` for each release; chart-releaser detects version changes to know which charts have changed and need releasing
6. For multi-chart monorepos, chart-releaser handles each chart independently — each gets its own GitHub release tagged `<chart-name>-<version>`