build(deps): bump the test-and-lint-dependencies group with 2 updates

Bumps the test-and-lint-dependencies group with 2 updates: [coverage](https://github.com/nedbat/coveragepy) and [ruff](https://github.com/astral-sh/ruff).


Updates `coverage` from 7.6.4 to 7.6.7
- [Release notes](https://github.com/nedbat/coveragepy/releases)
- [Changelog](https://github.com/nedbat/coveragepy/blob/master/CHANGES.rst)
- [Commits](nedbat/coveragepy@7.6.4...7.6.7)

Updates `ruff` from 0.7.3 to 0.7.4
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.7.3...0.7.4)

---
updated-dependencies:
- dependency-name: coverage
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: test-and-lint-dependencies
- dependency-name: ruff
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: test-and-lint-dependencies
...

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

requirements/lint.txt

@@ -6,7 +6,7 @@
 # Lint tools
 # (We are not so interested in the specific versions of the tools: the versions
 # are pinned to prevent unexpected linting failures when tools update)
-ruff==0.7.3
+ruff==0.7.4
 mypy==1.13.0
 
 # Required for type stubs

requirements/test.txt

@@ -4,5 +4,5 @@
 -r pinned.txt
 
 # coverage measurement
-coverage==7.6.4
+coverage==7.6.7
 freezegun==1.5.1