Bump dotenv from 16.3.1 to 16.4.5

Bumps [dotenv](https://github.com/motdotla/dotenv) from 16.3.1 to 16.4.5.
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](motdotla/dotenv@v16.3.1...v16.4.5)

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

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