Bump actions/checkout in the all-github-actions group

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


Updates `actions/checkout` from 5.0.0 to 6.0.0
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@08c6903...1af3b93)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all-github-actions
...

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

Author: dependabot[bot]

.github/workflows/batch_release_pr.yml

@@ -11,7 +11,7 @@ jobs:
       BRANCH_NAME: ${{ github.event.client_payload.package }}-${{ github.run_id }}-${{ github.run_attempt }}
     steps:
       - name: checkout repository
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3
       - name: Set up tools
         run: dart pub get
         working-directory: ${{ github.workspace }}/script/tool

.github/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
         cd $GITHUB_WORKSPACE
     # Checks out a copy of the repo.
     - name: Check out code
-      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8
+      uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3
       with:
         fetch-depth: 0 # Fetch all history so the tool can get all the tags to determine version.
     - name: Set up tools