Bump coverage from 6.5.0 to 7.0.0 in /server

Bumps [coverage](https://github.com/nedbat/coveragepy) from 6.5.0 to 7.0.0.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](coveragepy/coveragepy@6.5.0...7.0.0)

---
updated-dependencies:
- dependency-name: coverage
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

server/requirements-test.txt

@@ -1,5 +1,5 @@
 alembic-autogen-check==1.1.1
-coverage==6.5.0
+coverage==7.0.0
 pytest==7.2.0
 pytest-aiohttp==1.0.4
 pytest-cov==4.0.0