ci(gh actions): added PR auto-merge workflow

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

@@ -0,0 +1,28 @@
+name: Dependabot auto-merge
+on: pull_request
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  tests:
+    uses: ./.github/workflows/test.yml
+  dependabot:
+    name: "Auto-merge Dependabot PR"
+    runs-on: ubuntu-latest
+    needs: tests
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    steps:
+      - name: Dependabot metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v1
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+      - name: Enable auto-merge for Dependabot PRs
+        # (fixes, features but not major upgrades!)
+        if: ${{steps.metadata.outputs.update-type == 'version-update:semver-patch' || steps.metadata.outputs.update-type == 'version-update:semver-minor'}}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
   # separate job to set as required in branch protection,
   # as the build names above change each time Node versions change
   lint:
-    name: Linting
+    name: 🧪 Linting
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -41,7 +41,7 @@ jobs:
       matrix:
         java-version: ${{ fromJson(vars.RTLDEV_MW_CI_JAVA_MATRIX) }}
 
-    name: Test @ Java JDK ${{ matrix.java-version }}
+    name: 🧪 Testing
     needs: lint    
 
     steps: