Bump @typescript-eslint/typescript-estree from 2.6.0 to 2.6.1 (#6805)
* Bump @typescript-eslint/typescript-estree from 2.6.0 to 2.6.1
Bumps [@typescript-eslint/typescript-estree](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/typescript-estree) from 2.6.0 to 2.6.1.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/typescript-estree/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v2.6.1/packages/typescript-estree)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
* add shim for path.extname