chore(deps-dev): bump chokidar from 2.1.8 to 3.4.3 in /client

Bumps [chokidar](https://github.com/paulmillr/chokidar) from 2.1.8 to 3.4.3.
- [Release notes](https://github.com/paulmillr/chokidar/releases)
- [Commits](https://github.com/paulmillr/chokidar/commits/3.4.3)

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

client/package.json

@@ -106,7 +106,7 @@
     "@testing-library/react": "^11.1.2",
     "autoprefixer": "^9.8.6",
     "babel-plugin-transform-imports": "^1.5.1",
-    "chokidar": "^2.1.5",
+    "chokidar": "^3.4.3",
     "copy-webpack-plugin": "^5.1.2",
     "jest": "^26.6.3",
     "monaco-editor-webpack-plugin": "^1.9.0",