Suppress too-many-instance-attributes lint for ExperimentalApi

Adding the priming_groups_api attribute pushed the class to 8/7.

Author: brandon-wada

src/groundlight/experimental_api.py

@@ -56,7 +56,7 @@
 from .client import DEFAULT_REQUEST_TIMEOUT, Groundlight, GroundlightClientError, logger
 
 
-class ExperimentalApi(Groundlight):  # pylint: disable=too-many-public-methods
+class ExperimentalApi(Groundlight):  # pylint: disable=too-many-public-methods,too-many-instance-attributes
     def __init__(
         self,
         endpoint: Union[str, None] = None,