Bump actions/upload-artifact from 2.2.4 to 3.1.0

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2.2.4 to 3.1.0.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2.2.4...v3.1.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/maven.yml

@@ -32,7 +32,7 @@ jobs:
         name: Get maven project version
         uses: jactions/[email protected]
       - name: Upload plugin artifact
-        uses: actions/upload-artifact@v2.2.4
+        uses: actions/upload-artifact@v3.1.0
         with:
           name: plugin
           path: sonar-flutter-plugin/target/sonar-flutter-plugin-${{ steps.get-version.outputs.version }}.jar