chore(deps): bump the actions group with 2 updates (#288)

Bumps the actions group with 2 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `actions/upload-artifact` from 5 to 6
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

Updates `actions/download-artifact` from 6 to 7
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
- dependency-name: actions/download-artifact
  dependency-version: '7'
  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>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -49,15 +49,15 @@ jobs:
       - name: Store the distribution files for use in other stages
         # `tests` and `publish` will use the same pre-built distributions,
         # so we make sure to release the exact same package that was tested
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: python-distribution-files
           path: dist/
           retention-days: 1
       - name: Download files used for testing
         run: python tools/cache_urls_for_tests.py
       - name: Store downloaded files
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: test-download-files
           path: ${{ env.VALIDATE_PYPROJECT_CACHE_REMOTE }}
@@ -86,10 +86,10 @@ jobs:
           allow-prereleases: true
       - uses: astral-sh/setup-uv@v7
       - name: Retrieve pre-built distribution files
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with: {name: python-distribution-files, path: dist/}
       - name: Retrieve test download files
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with:
           name: test-download-files
           path: ${{ env.VALIDATE_PYPROJECT_CACHE_REMOTE }}
@@ -129,7 +129,7 @@ jobs:
         with: {python-version: "3.x"}
       - uses: astral-sh/setup-uv@v7
       - name: Retrieve pre-built distribution files
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with: {name: python-distribution-files, path: dist/}
       - name: Publish Package
         env: