Bump actions/checkout in the all-actions group across 1 directory

Bumps the all-actions group with 1 update in the / directory: [actions/checkout](https://github.com/actions/checkout).


Updates `actions/checkout` from 5 to 6
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/build-release.yml

@@ -15,7 +15,7 @@ jobs:
     if: ${{ github.event.commits[0].author.name != 'dependabot[bot]' }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.ASSETS_COMMIT_TOKEN }}
           ref: ${{ github.head_ref || github.ref_name }}

.github/workflows/update-dependencies.yml

@@ -13,7 +13,7 @@ jobs:
       packages_changed: ${{ steps.changes.outputs.packages_changed }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.ASSETS_COMMIT_TOKEN }}
           ref: ${{ github.head_ref || github.ref_name }}