Fix CI failures: formatting and coverage

- Add missing blank line after function definition (ruff-format)
- Add pragma: no cover to mock function not executed in test

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: pcarleton

examples/clients/conformance-auth-client/mcp_conformance_auth_client/__init__.py

@@ -58,6 +58,7 @@ def get_conformance_context() -> dict:
     except json.JSONDecodeError as e:
         raise RuntimeError(f"Failed to parse MCP_CONFORMANCE_CONTEXT as JSON: {e}") from e
 
+
 # Set up logging to stderr (stdout is for conformance test output)
 logging.basicConfig(
     level=logging.DEBUG,

tests/client/auth/extensions/test_client_credentials.py

@@ -282,7 +282,7 @@ class TestPrivateKeyJWTOAuthProvider:
     async def test_init_sets_client_info(self, mock_storage: MockTokenStorage):
         """Test that _initialize sets client_info."""
 
-        async def mock_assertion_provider(audience: str) -> str:
+        async def mock_assertion_provider(audience: str) -> str:  # pragma: no cover
             return "mock-jwt"
 
         provider = PrivateKeyJWTOAuthProvider(