build(deps): bump actions/checkout from 2.3.5 to 2.4.0 (#27179)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.3.5 to 2.4.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](1e204e9a92...ec3a7ce113)

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

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

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

.github/workflows/build-containers.yml

@@ -36,7 +36,7 @@ jobs:
     name: Build ${{ matrix.dockerfile[0] }}
     steps:
       - name: Checkout
-        uses: actions/checkout@1e204e9a9253d643386038d443f96446fa156a97 # @v2
+        uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579 # @v2
 
       - name: Set Container Tag Normal (Nightly)
         run: |