Bump coverage from 4.5.1 to 4.5.2
Bump coverage from 4.5.1 to 4.5.2

Bumps [coverage](https://bitbucket.org/ned/coveragepy) from 4.5.1 to 4.5.2.
- [Changelog](https://bitbucket.org/ned/coveragepy/src/master/CHANGES.rst)
- [Commits](https://bitbucket.org/ned/coveragepy/commits)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc,annapowellsmith/openpresc,ebmdatalab/openprescribing,ebmdatalab/openprescribing