chore(deps): bump morgan from 1.9.1 to 1.11.0 in /doc

Bumps [morgan](https://github.com/expressjs/morgan) from 1.9.1 to 1.11.0.
- [Release notes](https://github.com/expressjs/morgan/releases)
- [Changelog](https://github.com/expressjs/morgan/blob/master/HISTORY.md)
- [Commits](expressjs/morgan@1.9.1...1.11.0)

---
updated-dependencies:
- dependency-name: morgan
  dependency-version: 1.11.0
  dependency-type: indirect
...

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

Author: dependabot[bot]