feat(ingest): looker - improve defaults for usage extraction (#5893)

Co-authored-by: Ravindra Lanka <[email protected]>

metadata-ingestion/src/datahub/ingestion/source/looker/looker_source.py

@@ -124,12 +124,12 @@ class LookerDashboardSourceConfig(LookerAPIConfig, LookerCommonConfig):
     )
     extract_usage_history: bool = Field(
         False,
-        description="Experimental (Subject to breaking change) -- Whether to ingest usage statistics for dashboards. Setting this to True will query looker system activity explores to fetch historical dashboard usage.",
+        description="Whether to ingest usage statistics for dashboards. Setting this to True will query looker system activity explores to fetch historical dashboard usage.",
     )
     # TODO - stateful ingestion to autodetect usage history interval
     extract_usage_history_for_interval: str = Field(
-        "1 day ago",
-        description="Experimental (Subject to breaking change) -- Used only if extract_usage_history is set to True. Interval to extract looker dashboard usage history for . https://docs.looker.com/reference/filter-expressions#date_and_time",
+        "30 days",
+        description="Used only if extract_usage_history is set to True. Interval to extract looker dashboard usage history for. See https://docs.looker.com/reference/filter-expressions#date_and_time.",
     )
 
     @validator("external_base_url", pre=True, always=True)