Update actions/upload-artifact action to v5

Author: renovate[bot]

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
         uses: gradle/actions/setup-gradle@v4
       - name: Run Gradle
         run: ./gradlew build
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: TownyMenus
           path: build/libs/TownyMenus-*.jar