Any advanced configuration should be done via a
release-please-config.json.
Fixes#859Fixes#858Fixes#857Fixes#852
feat!: remove most configuration options in favor of manifest
configuration to configure the release-please-action
refactor!: rewrite in typescript
feat!: remove command option in favor of setting `release-type` and
`skip-github-release`/`skip-github-pull-request`
feat!: run on node20
deps!: upgrade release-please to v16
