Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/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
...

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

Author: dependabot[bot]

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
         run: python3 -m pip install --user "tox>=4.0.0"
 
       - name: Check out src from Git
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0 # needed by setuptools-scm
           submodules: true

.github/workflows/tox.yml

@@ -51,7 +51,7 @@ jobs:
       matrix: ${{ fromJson(needs.prepare.outputs.matrix) }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0  # needed by setuptools-scm
           submodules: true
@@ -123,7 +123,7 @@ jobs:
 
     steps:
       # checkout needed for codecov action which needs codecov.yml file
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Set up Python # likely needed for coverage
         uses: actions/setup-python@v5