requirements(deps): bump django-coverage-plugin from 2.0.3 to 2.0.4
requirements(deps): bump django-coverage-plugin from 2.0.3 to 2.0.4

Bumps [django-coverage-plugin](https://github.com/nedbat/django_coverage_plugin) from 2.0.3 to 2.0.4.
- [Release notes](https://github.com/nedbat/django_coverage_plugin/releases)
- [Commits](https://github.com/nedbat/django_coverage_plugin/compare/v2.0.3...v2.0.4)

---
updated-dependencies:
- dependency-name: django-coverage-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
hartwork/wnpp.debian.net,hartwork/wnpp.debian.net,hartwork/wnpp.debian.net