chore(deps-dev): bump @typescript-eslint/eslint-plugin (#765)

Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 4.19.0 to 4.20.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v4.20.0/packages/eslint-plugin)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -54,7 +54,7 @@
     "@rollup/plugin-commonjs": "17.1.0",
     "@rollup/plugin-node-resolve": "11.2.0",
     "@typescript-eslint/parser": "4.19.0",
-    "@typescript-eslint/eslint-plugin": "4.19.0",
+    "@typescript-eslint/eslint-plugin": "4.20.0",
     "babel-plugin-add-module-exports": "1.0.4",
     "eslint": "7.23.0",
     "eslint-config-google": "0.14.0",