Automatically trigger auto merge for Dependabot PRs

Issue gh-14535

.github/workflows/edit-dependabot-pr.yml

@@ -1,55 +0,0 @@
-# This workflow is an adaptation from https://github.com/spring-projects/spring-integration/blob/main/.github/workflows/merge-dependabot-pr.yml
-# and https://github.com/spring-io/spring-github-workflows/blob/main/.github/workflows/spring-merge-dependabot-pr.yml
-
-name: Edit Dependabot PR
-
-on:
-  pull_request:
-
-run-name: Edit Dependabot PR ${{ github.ref_name }}
-
-env:
-  GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-jobs:
-  edit-dependabot-pr:
-    runs-on: ubuntu-latest
-    if: github.actor == 'dependabot[bot]'
-    permissions: write-all
-    steps:
-
-      - uses: actions/checkout@v4
-        with:
-          show-progress: false
-
-      - uses: actions/setup-java@v4
-        with:
-          distribution: temurin
-          java-version: 17
-
-      - name: Dependabot metadata
-        id: metadata
-        uses: dependabot/fetch-metadata@v1
-        with:
-          github-token: ${{ env.GH_TOKEN }}
-
-      - name: Set Milestone to Dependabot pull request
-        id: set-milestone
-        run: |
-          if test -f pom.xml
-          then
-            CURRENT_VERSION=$(mvn help:evaluate -Dexpression="project.version" -q -DforceStdout)
-          else
-            CURRENT_VERSION=$(cat gradle.properties | sed -n '/^version=/ { s/^version=//;p }')
-          fi
-          export CANDIDATE_VERSION=${CURRENT_VERSION/-SNAPSHOT}
-          MILESTONE=$(gh api repos/$GITHUB_REPOSITORY/milestones --jq 'map(select(.due_on != null and (.title | startswith(env.CANDIDATE_VERSION)))) | .[0] | .title')
-          
-          if [ -z $MILESTONE ]
-          then
-            gh run cancel ${{ github.run_id }}
-            echo "::warning title=Cannot merge::No scheduled milestone for $CURRENT_VERSION version"
-          else
-            gh pr edit ${{ github.event.pull_request.number }} --milestone $MILESTONE
-            echo mergeEnabled=true >> $GITHUB_OUTPUT
-          fi

.github/workflows/merge-dependabot-pr.yml

@@ -0,0 +1,13 @@
+name: Merge Dependabot PR
+
+on:
+  pull_request:
+
+run-name: Merge Dependabot PR ${{ github.ref_name }}
+
+jobs:
+  merge-dependabot-pr:
+    permissions: write-all
+    uses: spring-io/spring-github-workflows/.github/workflows/spring-merge-dependabot-pr.yml@v2
+    with:
+      mergeArguments: '--auto --rebase'

.github/workflows/trigger-dependabot-auto-merge-forward.yml

@@ -0,0 +1,20 @@
+name: Trigger Dependabot Auto Merge Forward
+
+on:
+  push:
+
+permissions: read-all
+
+jobs:
+  trigger-worflow:
+    name: Trigger Workflow
+    runs-on: ubuntu-latest
+    if: github.event.commits[0].author.username == 'dependabot[bot]'
+    steps:
+      - name: Checkout
+        id: checkout
+        uses: actions/checkout@v4
+      - id: trigger
+        env:
+          GH_TOKEN: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}
+        run: gh workflow run dependabot-auto-merge-forward.yml -r main