Add dependabot merge to workflow

Author: YasharF

.github/workflows/run-tests.yml

@@ -10,7 +10,7 @@ permissions:
   contents: read
 
 jobs:
-  build:
+  test:
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -30,3 +30,20 @@ jobs:
     - name: Test with pytest
       run: |
         tox
+
+  automerge:
+    needs: test
+    if: ${{ github.event.pull_request.user.login == 'dependabot[bot]' }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: Enable automerge for Dependabot PRs
+        shell: bash
+        env:
+          GH_TOKEN: ${{ github.token }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+        run: |
+          gh pr merge --squash --auto "$PR_NUMBER"