chore(deps): bump actions/checkout from 5 to 6 in the actions group (#2672)

Bumps the actions group with 1 update: [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](https://github.com/actions/checkout/compare/v5...v6)

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

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

.github/workflows/test.yml

@@ -37,7 +37,7 @@ jobs:
     name: Linters (mypy, ruff, etc.)
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       id: python
       with:
@@ -91,7 +91,7 @@ jobs:
           test_select: android
     timeout-minutes: 180
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       name: Install Python ${{ matrix.python_version }}
       with:
@@ -220,7 +220,7 @@ jobs:
     outputs:
       archs: ${{ steps.archs.outputs.archs }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: "3.x"
@@ -243,7 +243,7 @@ jobs:
       matrix:
         arch: ${{ fromJSON(needs.emulated-archs.outputs.archs) }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: "3.x"
@@ -263,7 +263,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 180
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       name: Install Python 3.12
       with: