build: bump dotenv from 16.4.5 to 16.4.6

Bumps [dotenv](https://github.com/motdotla/dotenv) from 16.4.5 to 16.4.6.
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](motdotla/dotenv@v16.4.5...v16.4.6)

---
updated-dependencies:
- dependency-name: dotenv
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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