Bump @types/testing-library__react from 10.0.0 to 10.2.0 in /desktop (#1366)

Summary:
Created a few breakages. Would appreciate some closer eyes on this.

Pull Request resolved: https://github.com/facebook/flipper/pull/1366

Reviewed By: mweststrate

Differential Revision: D22501454

fbshipit-source-id: 9b882a12aecc65da85f29101bf87bf27519a7d2a

desktop/plugins/layout/package.json

@@ -14,7 +14,7 @@
     "lodash": "^4.17.15"
   },
   "devDependencies": {
-    "@testing-library/react": "^10.0.2"
+    "@testing-library/react": "^10.4.3"
   },
   "title": "Layout",
   "icon": "target",