build(deps): bump actions/upload-artifact in the github-actions group

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


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

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  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>

Author: dependabot[bot]

.github/workflows/smoke.yml

@@ -43,7 +43,7 @@ jobs:
         run: meson test -C builddir --suite short
 
       - name: Upload testlog
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         if: success() || failure()
         with:
           name: testlog.txt