ci(release-please): merge workflows + refine config (#48)

* ci(release-please): merge workflows

* ci(release-please): run only in this repo

* ci(release-please): move config/manifest into .github folder

* ci(release-please): reduce permissions

Author: caugner

.github/workflows/release-please-pr.yml

@@ -4,18 +4,17 @@ on:
       - main
 
 permissions:
-  contents: write
-  pull-requests: write
+  contents: read
 
-name: release-please-release
+name: release-please
 
 jobs:
   release-please:
+    if: github.repository == 'mdn/watify'
     runs-on: ubuntu-latest
     steps:
       - uses: googleapis/release-please-action@16a9c90856f42705d54a6fda1823352bdc62cf38 # v4.4.0
         with:
-          skip-github-pull-request: true
-          repo-url: mdn/watify
-          manifest-file: .release-please-manifest.json
+          config-file: .github/release-please-config.json
+          manifest-file: .github/release-please-manifest.json
           token: ${{ secrets.RELEASE_PLEASE_GITHUB_TOKEN }}