fix(mypy): restore ignores for generated bigtable packages

Author: chalmerlowe

mypy.ini

@@ -103,6 +103,15 @@ ignore_errors = True
 [mypy-google.cloud.bigtable.data.*]
 ignore_errors = False
 
+[mypy-google.cloud.bigtable_admin.*]
+ignore_errors = True
+
+[mypy-google.cloud.bigtable_admin_v2.*]
+ignore_errors = True
+
+[mypy-google.cloud.bigtable_v2.*]
+ignore_errors = True
+
 # --- google-cloud-datastore ---
 [mypy-google.cloud.datastore.*]
 ignore_missing_imports = True