[ci]: Bump the actions group with 5 updates

Bumps the actions group with 5 updates:

| Package | From | To |
| --- | --- | --- |
| [actions/setup-python](https://github.com/actions/setup-python) | `5` | `7` |
| [actions/checkout](https://github.com/actions/checkout) | `6` | `7` |
| [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) | `5` | `7` |
| [actions/upload-artifact](https://github.com/actions/upload-artifact) | `4` | `7` |
| [actions/download-artifact](https://github.com/actions/download-artifact) | `4` | `8` |


Updates `actions/setup-python` from 5 to 7
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v5...v7)

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](https://github.com/actions/checkout/compare/v6...v7)

Updates `astral-sh/setup-uv` from 5 to 7
- [Release notes](https://github.com/astral-sh/setup-uv/releases)
- [Commits](https://github.com/astral-sh/setup-uv/compare/v5...v7)

Updates `actions/upload-artifact` from 4 to 7
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v4...v7)

Updates `actions/download-artifact` from 4 to 8
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](https://github.com/actions/download-artifact/compare/v4...v8)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: astral-sh/setup-uv
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

.github/workflows/examples.yml

@@ -24,14 +24,14 @@ jobs:
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Setup python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v7
         with:
           python-version: ${{ matrix.python-version }}
       - name: uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v7
 
       - name: Install LaTeX
         run: |