Bump virtualenv from 20.4.1 to 20.4.2 in /.github/workflows (#239)
Bump virtualenv from 20.4.1 to 20.4.2 in /.github/workflows (#239)

Bumps [virtualenv](https://github.com/pypa/virtualenv) from 20.4.1 to 20.4.2.
- [Release notes](https://github.com/pypa/virtualenv/releases)
- [Changelog](https://github.com/pypa/virtualenv/blob/main/docs/changelog.rst)
- [Commits](https://github.com/pypa/virtualenv/compare/20.4.1...20.4.2)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
brechtm/rinohtype,brechtm/rinohtype,brechtm/rinohtype