upgrade react-devtools to v4.28.0 (#4948)

Summary:
allow-large-files

Resolved issue with react-devtools v4.27.7 (duplicated backend activation with multiple renderers)

## Changelog

upgraded react-devtools to v4.28.0

Pull Request resolved: https://github.com/facebook/flipper/pull/4948

Test Plan: in flipper/desktop/plugins/public/reactdevtools/ I run yarn upgrade react-devtools-core

Reviewed By: antonk52

Differential Revision: D47553560

Pulled By: passy

fbshipit-source-id: ba315047fe9c71628aa8f3d934e9a092b61bff4e

desktop/plugins/public/reactdevtools/package.json

@@ -21,8 +21,8 @@
   "dependencies": {
     "@rollup/plugin-commonjs": "^21.0.3",
     "@rollup/plugin-node-resolve": "^13.1.3",
-    "react-devtools-core": "^4.27.7",
-    "react-devtools-inline": "^4.27.7",
+    "react-devtools-core": "^4.28.0",
+    "react-devtools-inline": "^4.28.0",
     "rollup": "^2.70.1",
     "ws": "^8.5.0"
   },