HBX-3250: Bump actions/checkout from 5.0.0 to 6.0.0 in the workflow-actions group

Bumps the workflow-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: workflow-actions
...

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

Author: dependabot[bot]

.github/workflows/build_test.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
     - name: Checkout PR Branch
-      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       with:
         ref: ${{ github.event.pull_request.head.sha }}
         fetch-depth: 0