build(deps): bump morgan from 1.8.1 to 1.9.1

Bumps [morgan](https://github.com/expressjs/morgan) from 1.8.1 to 1.9.1.
- [Release notes](https://github.com/expressjs/morgan/releases)
- [Changelog](https://github.com/expressjs/morgan/blob/master/HISTORY.md)
- [Commits](expressjs/morgan@1.8.1...1.9.1)

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Author: dependabot[bot]