Update dependency pytest-cov to ~=6.3.0

Author: renovate[bot]

pyproject.toml

@@ -67,7 +67,7 @@ dev = ["ipykernel~=6.30.0", "mypy~=1.17.0", "pre-commit~=4.3.0", "ruff~=0.12.0"]
 test = [
     "pytest~=8.4.0",
     "pytest-asyncio~=0.21.2",
-    "pytest-cov~=6.2.1",
+    "pytest-cov~=6.3.0",
     "pytest-httpx~=0.33.0",
     "pytest-mock~=3.15.0",
     "requests-mock~=1.12.1",