Update dependency ruff to v0.15.8 (#182)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements-test.txt

@@ -2,5 +2,5 @@ pynose==1.5.5
 coverage==7.13.5
 coveralls==4.1.0
 responses==0.26.0
-ruff==0.15.7
+ruff==0.15.8
 pytest==9.0.2