Bump @google-cloud/storage from 2.3.1 to 2.4.1

Bumps [@google-cloud/storage](https://github.com/googleapis/nodejs-storage) from 2.3.1 to 2.4.1.
- [Release notes](https://github.com/googleapis/nodejs-storage/releases)
- [Changelog](https://github.com/googleapis/nodejs-storage/blob/master/CHANGELOG.md)
- [Commits](googleapis/nodejs-storage@v2.3.1...v2.4.1)

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

Author: dependabot-support