Bump actions/checkout from 6 to 7 in the github-actions group (#94)

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


Updates `actions/checkout` from 6 to 7
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/containers.yml

@@ -61,7 +61,7 @@ jobs:
     steps:
       # Restart Docker daemon so that it recognizes the ephemeral disks
       - run: sudo systemctl restart docker
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           submodules: "true"
       - name: Build ${{ matrix.image_repo }}

.github/workflows/test-sccache.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Setup sccache
         uses: ./actions/sccache
@@ -62,7 +62,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Setup sccache
         uses: ./actions/sccache

.github/workflows/update_dependency.yml

@@ -43,7 +43,7 @@ jobs:
     name: Run dependency updater
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           submodules: ${{ inputs.checkout-submodules }}
       - name: Run updater