Update dependency pytest-cov to ~=6.1.1

Author: renovate[bot]

Diff for: pyproject.toml

@@ -90,8 +90,8 @@ test = [
     "pytest~=7.4.4; python_version<'3.9'",
     "pytest~=8.3.3; python_version>='3.9'",
     "pytest-asyncio~=0.21.2",
-    "pytest-cov~=5.0.0; python_version<'3.9'",
-    "pytest-cov~=6.0.0; python_version>='3.9'",
+    "pytest-cov~=6.1.1; python_version<'3.9'",
+    "pytest-cov~=6.1.1; python_version>='3.9'",
     "pytest-httpx~=0.22.0; python_version<'3.9'",
     "pytest-httpx~=0.33.0; python_version>='3.9'",
     "pytest-mock~=3.14.0",