Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/image.yaml

@@ -42,7 +42,7 @@ jobs:
         - vulkan
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         name: Check out code
 
       - name: Set up QEMU

.github/workflows/variables.yaml

@@ -30,7 +30,7 @@ jobs:
       golang_version: ${{ steps.golang_version.outputs.golang_version }}
     steps:
     - name: Check out code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Generate Commit Short SHA
       id: version