chore(ci): auto-merge dependabot PRs (#86)

Signed-off-by: Tomasz Janiszewski <tomek@redhat.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: janisz

.github/dependabot.yml

@@ -1,6 +1,5 @@
 version: 2
 updates:
-  # Monitor root Go module
   - package-ecosystem: "gomod"
     directory: "/"
     schedule:
@@ -9,8 +8,11 @@ updates:
       prefix: "chore"
       prefix-development: "chore"
       include: "scope"
+    labels:
+      - "dependencies"
+      - "go"
+      - "auto-merge"
 
-  # Monitor e2e-tests tools Go module
   - package-ecosystem: "gomod"
     directory: "/e2e-tests/tools"
     schedule:
@@ -19,3 +21,6 @@ updates:
       prefix: "chore"
       prefix-development: "chore"
       include: "scope"
+    labels:
+      - "dependencies"
+      - "go"

.github/workflows/auto-merge.yml

@@ -0,0 +1,19 @@
+name: Dependabot auto-merge
+on: pull_request
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  dependabot:
+    runs-on: ubuntu-latest
+    if: |
+      github.event.pull_request.user.login == 'dependabot[bot]' &&
+      contains(github.event.pull_request.labels.*.name, 'auto-merge')
+    steps:
+      - name: Enable auto-merge for Dependabot PRs
+        run: gh pr merge --auto --squash "$PR_URL" && gh pr review --approve "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GH_TOKEN: ${{secrets.GITHUB_TOKEN}}