chore(deps): bump actions/checkout from 2 to 3.0.0

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](actions/checkout@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>

Author: dependabot[bot]

.github/workflows/tests.yaml

@@ -54,7 +54,7 @@ jobs:
             error-is-success: true
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.0.0
     - uses: ./
       name: "Test: ${{ matrix.test.suite }} ${{ matrix.test.target }}"
       with: