Bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v4)

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

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

Author: dependabot[bot]

.github/workflows/main.yml

@@ -37,7 +37,7 @@ jobs:
       BUILD_LITE: ${{ matrix.BUILD_LITE }}
     runs-on: ${{ matrix.RUNS_ON }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           submodules: 'recursive'
       - name: Login to GitHub Container Registry

.github/workflows/update-docker-images.yml

@@ -40,7 +40,7 @@ jobs:
       BUILD_LITE: ${{ matrix.BUILD_LITE }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up QEMU integration for Docker
         run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
       - name: Build and upload Docker image