fix: upgrade react-ace from 9.3.0 to 9.4.0 (#1683)

Snyk has created this PR to upgrade react-ace from 9.3.0 to 9.4.0.

See this package in npm:
https://www.npmjs.com/package/react-ace

See this project in Snyk:
https://app.snyk.io/org/acinader/project/953c8e1a-a9ef-4134-afbe-43474913abbb?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -61,7 +61,7 @@
     "prop-types": "15.7.2",
     "query-string": "6.14.1",
     "react": "16.14.0",
-    "react-ace": "9.3.0",
+    "react-ace": "9.4.0",
     "react-dnd": "10.0.2",
     "react-dnd-html5-backend": "10.0.2",
     "react-dom": "16.14.0",