Fix GitHub error by updating actions

GitHub moment

Author: UnlikePaladin

.github/workflows/build.yml

@@ -41,7 +41,7 @@ jobs:
           path: forge/build/libs/
 
       - name: Upload Spigot artifacts to GitHub
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: Spigot-Artifacts
           path: spigot/build/libs/