docs: fix 'incase' typo in connection schema host description

Author: anxkhn

src/google/adk/tools/application_integration_tool/clients/connections_client.py

@@ -247,7 +247,7 @@ def get_connector_base_spec() -> Dict[str, Any]:
                 "host": {
                     "type": "string",
                     "default": "",
-                    "description": "Host name incase of tls service directory",
+                    "description": "Host name in case of tls service directory",
                 },
                 "entity": {
                     "type": "string",