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

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


Updates `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
  dependency-group: actions-deps
...

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

Author: dependabot[bot]

.github/workflows/classroom.yml

@@ -12,7 +12,7 @@ jobs:
     if: github.actor != 'github-classroom[bot]'
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Compilation Check
       id: compilation-check
       uses: classroom-resources/autograding-command-grader@v1