Bump actions/checkout from 2 to 3 (#1967)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v3)

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

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/integration-tests.yaml

@@ -25,7 +25,7 @@ jobs:
     - uses: actions/setup-go@v2
       with:
         go-version: 1.17
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - uses: docker/setup-buildx-action@v1
 
     - run: make install-container-diff minikube-setup