Summary:
[`querystring`](https://www.npmjs.com/package/querystring) package is deprecated. In this Pull Request I've replaced usage of `querystring` with `URLSearchParam` what is recommended by Node.js.
It's also causing a warning when installing dependencies inside a React Native app:
```
warning react-native > react-native/community-cli-plugin > querystring@0.2.1: The querystring API is considered Legacy. new code should use the URLSearchParams API instead.
```
## Changelog:
[INTERNAL] [FIXED] - Replace `querystring` package with `URLSearchParam`
Pull Request resolved: https://github.com/facebook/react-native/pull/45125
Test Plan:
Params should be parsed in the same way and warning shouldn't be presented.
js1 jest xplat/js/tools/metro/packages/metro/src/cli/__tests__/parseKeyValueParamArray-test.js
Reviewed By: cipolleschi
Differential Revision: D58948498
Pulled By: GijsWeterings
fbshipit-source-id: 79b1f7b3feae230d2d3641205c513b98b3fda511