chore(release-please): update and set target branch for 2.x releases

.github/workflows/ci.yml

@@ -7,12 +7,20 @@ on:
     branches:
       - main
       - master
+      - 3.x
+      - 2.x
+      - 1.x
 
 jobs:
 
   release-please:
     runs-on: [ ubuntu-latest ]
-    if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master'
+    if: |
+        github.ref == 'refs/heads/main' ||
+        github.ref == 'refs/heads/master' ||
+        github.ref == 'refs/heads/1.x' ||
+        github.ref == 'refs/heads/2.x' ||
+        github.ref == 'refs/heads/3.x'
     outputs:
       release_created: ${{ steps.release-please.outputs.release_created }}
       tag_name: ${{ steps.release-please.outputs.tag_name }}
@@ -24,11 +32,11 @@ jobs:
         with:
           app_id: ${{ vars.RELEASE_PLEASE_GITHUB_APP_ID }}
           private_key: ${{ secrets.RELEASE_PLEASE_GITHUB_APP_PRIVATE_KEY }}
-      - uses: google-github-actions/release-please-action@v3
+      - uses: google-github-actions/release-please-action@v4
         id: release-please
         with:
           token: ${{ steps.generate-github-token.outputs.token }}
-          command: manifest
+          target-branch: 2.x
 
   release:
     runs-on: [ ubuntu-latest ]