chore(deps-dev): Bump nodemon from 2.0.7 to 2.0.21

Bumps [nodemon](https://github.com/remy/nodemon) from 2.0.7 to 2.0.21.
- [Release notes](https://github.com/remy/nodemon/releases)
- [Commits](remy/nodemon@v2.0.7...v2.0.21)

---
updated-dependencies:
- dependency-name: nodemon
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]