chore(deps): update dependency coverage to v7.15.0

Author: renovate[bot]

.github/pythonchecks.txt

@@ -19,5 +19,5 @@ mypy==2.1.0
 types-requests==2.33.0.20260518
 pytest-xdist==3.8.0
 flake8-noqa==1.5.0; python_version < '3.14' # check behaves different on 3.13 and below
-coverage==7.14.3
+coverage==7.15.0
 build==1.5.0