Bump coverage from 5.2.1 to 7.2.2 in /reportsizedeltas/tests

Bumps [coverage](https://github.com/nedbat/coveragepy) from 5.2.1 to 7.2.2.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](coveragepy/coveragepy@coverage-5.2.1...7.2.2)

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

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

Author: dependabot[bot]

reportsizedeltas/tests/requirements.txt

@@ -1,3 +1,3 @@
-coverage==5.2.1
+coverage==7.2.2
 pytest==7.2.2
 pytest-mock==3.10.0