Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/tests.yml

@@ -138,7 +138,7 @@ jobs:
 
       - name: Upload plugin
         if: matrix.os == 'ubuntu-latest'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           # Don't upload the zip file directly cuz GitHub will zip it again
           name: worddumb-${{ github.sha }}