Update actions/upload-artifact action to v5

Author: renovate[bot]

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
       - name: Clean Build
         run: ./gradlew clean build
       - name: Archive Artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Plot2Dynmap-SNAPSHOT
           path: build/libs/*-SNAPSHOT.jar