Update actions/upload-artifact action to v3

Author: renovate-bot

.github/workflows/maven.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Build with Maven
         run: mvn -B package --file pom.xml
       - name: Upload a Build Artifact
-        uses: actions/upload-artifact@v2.3.1
+        uses: actions/upload-artifact@v3.0.0
         with:
           # Artifact name
           name: PistonQueue