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/promote-branch.yml

@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout ${{ github.head_ref || github.ref }}'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: 'Check promotion type'
         if: ${{ (inputs.promotion-type != 'release') && (inputs.promotion-type != 'preview') }}
         run: |

.github/workflows/publish-documentation.yml

@@ -44,7 +44,7 @@ jobs:
 
     steps:
       - name: 'Checkout ${{ github.head_ref || github.ref }}'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: 'Determine versions'
         uses: ./.github/actions/determine-version
         id: determine-version