build(deps): Bump coverage from 7.6.1 to 7.6.4

Bumps [coverage](https://github.com/nedbat/coveragepy) from 7.6.1 to 7.6.4.
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.1...7.6.4)

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

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

benchmark-scripts/requirements.txt

@@ -1,5 +1,5 @@
 argparse==1.4.0
-coverage==7.6.1
+coverage==7.6.4
 mock==5.1.0
 numpy>=1.25.0
 pandas>=2.1.0