build(deps): bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
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/ci-actions.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
     - name: "Clone Repository"
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Test the NetWait action.
     - name: "Run Local NetWait Action"

.github/workflows/ci-images.yml

@@ -42,7 +42,7 @@ jobs:
       now: ${{ steps.parameters.outputs.now }}
     steps:
     - name: "Clone Repository"
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: "Determine Build Parameters"
       id: parameters
       env:
@@ -89,7 +89,7 @@ jobs:
       OSB_UNIQUEID: ${{ needs.config.outputs.now }}
     steps:
     - name: "Clone Repository"
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: "Prepare QEMU Emulators"
       uses: docker/setup-qemu-action@v2