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] <support@github.com>

Author: dependabot[bot]

.github/workflows/baseline-validator.yml

@@ -62,7 +62,7 @@ jobs:
     steps:
       # Checks out the repository under $GITHUB_WORKSPACE, so the job can access it
       # This step is required for GitHub Actions workflows to interact with repository contents
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         name: "Checkout Repository"
 
       # Validate the Dev Container configuration

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0