Add destructuredArrayIgnorePattern to eslint config (facebook#33552)

Summary:
This adds the `destructuredArrayIgnorePattern` rule [recently introduced in `typescript-eslint`](typescript-eslint/typescript-eslint#4691), making underscored identifiers in array destructurings no longer an error, e.g.

```js
const [state, _dispatch] = useContext(MyContext);
```

would be acceptable if `state` is used.

## Changelog

[General] [Added] - Add destructuredArrayIgnorePattern to eslint config

Pull Request resolved: facebook#33552

Test Plan: Install the `react-native-community/eslint-config` package and test the example.

Reviewed By: lunaleaps, cipolleschi

Differential Revision: D40166101

Pulled By: ryancat

fbshipit-source-id: 1e30297bf40d65e09682c4f9f3b3dd432ba5310e

packages/eslint-config-react-native-community/index.js

@@ -53,7 +53,10 @@ module.exports = {
       rules: {
         '@typescript-eslint/no-unused-vars': [
           'error',
-          {argsIgnorePattern: '^_'},
+          {
+            argsIgnorePattern: '^_',
+            destructuredArrayIgnorePattern: '^_',
+          },
         ],
         'no-unused-vars': 'off',
         'no-shadow': 'off',