Bump @rails/ujs from 6.0.2 to 6.0.3 (#13730)

Bumps [@rails/ujs](https://github.com/rails/rails) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/rails/rails/releases)
- [Commits](https://github.com/rails/rails/compare/v6.0.2...v6.0.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -69,7 +69,7 @@
     "@babel/runtime": "^7.8.4",
     "@clusterws/cws": "^2.0.0",
     "@gamestdio/websocket": "^0.3.2",
-    "@rails/ujs": "^6.0.2",
+    "@rails/ujs": "^6.0.3",
     "array-includes": "^3.1.1",
     "arrow-key-navigation": "^1.1.0",
     "autoprefixer": "^9.7.6",