build(deps-dev): bump @typescript-eslint/eslint-plugin

Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 2.28.0 to 2.30.0.
- [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/v2.30.0/packages/eslint-plugin)

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

package.json

@@ -82,7 +82,7 @@
     "@types/webpack": "^4.41.11",
     "@types/webpack-merge": "^4.1.5",
     "@types/webpack-node-externals": "^1.6.3",
-    "@typescript-eslint/eslint-plugin": "^2.28.0",
+    "@typescript-eslint/eslint-plugin": "^2.30.0",
     "@typescript-eslint/parser": "^2.0.0",
     "babel-eslint": "^10.0.3",
     "babel-loader": "^8.1.0",