Update ruff requirement from ~=0.6 to ~=0.8

Updates the requirements on [ruff](https://github.com/astral-sh/ruff) to permit the latest version.
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.6.0...0.8.1)

---
updated-dependencies:
- dependency-name: ruff
  dependency-type: direct:production
...

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

requirements-test.txt

@@ -6,7 +6,7 @@ pdoc~=15.0
 pyright~=1.1
 pytest-recording~=0.13
 pytest~=8.3
-ruff==0.6.9
+ruff==0.8.1
 syrupy~=4.7
 types-requests~=2.32
 typing_extensions~=4.11; python_version < "3.11"