Bump actions/checkout from 2.4.0 to 3.3.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.4.0 to 3.3.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.4.0...v3.3.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/auto-merge.yml

@@ -10,7 +10,7 @@ jobs:
     if: github.actor == 'dependabot[bot]'
     steps:
       - name: Checkout
-        uses: actions/checkout@v2.4.0
+        uses: actions/checkout@v3.3.0
 
       - name: Prepare Auto Merge
         uses: ahmadnassri/action-dependabot-auto-merge@v2