chore(deps): update actions/upload-artifact action to v6

Author: renovate[bot]

.github/workflows/maven.yml

@@ -38,7 +38,7 @@ jobs:
           cp -vrf .asset/*.jar artifacts
 
       - name: "Upload artifact"
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: Artifact
           path: artifacts