enhance prepare-maven-release.yml to create and auto-merge pull requests for both main and develop branches

Author: ivangsa

.github/workflows/prepare-maven-release.yml

@@ -34,7 +34,7 @@ jobs:
           GITHUB_ACTOR: ${{ github.actor }}
           GITHUB_TOKEN: ${{ github.token }}
 
-      - name: Create Pull Request
+      - name: Create Pull Request (Main)
         id: cpr
         uses: peter-evans/create-pull-request@v5
         with:
@@ -44,7 +44,7 @@ jobs:
           body: 'Release ${{ github.event.inputs.releaseVersion }}'
           labels: 'release'
 
-      - name: Enable Pull Request Automerge
+      - name: Enable Pull Request Automerge (Main)
         run: gh pr merge --merge --auto "${{ steps.cpr.outputs.pull-request-number }}"
         env:
           GH_TOKEN: ${{ github.token }}