Bump tough-cookie and honkit

Removes [tough-cookie](https://github.com/salesforce/tough-cookie). It's no longer used after updating ancestor dependency [honkit](https://github.com/honkit/honkit). These dependencies need to be updated together.


Removes `tough-cookie`

Updates `honkit` from 3.7.5 to 5.1.4
- [Release notes](https://github.com/honkit/honkit/releases)
- [Changelog](https://github.com/honkit/honkit/blob/master/CHANGELOG.md)
- [Commits](honkit/honkit@v3.7.5...v5.1.4)

---
updated-dependencies:
- dependency-name: tough-cookie
  dependency-type: indirect
- dependency-name: honkit
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>