chore(ACI): Pop actions off of conditions (#103755)

Small fix for a bug I noticed - when we "split" actions from conditions
we weren't actually removing the actions from the condition group data,
just copying it over into it's own variable so that conditions still had
actions on it. We don't need to run actions through the condition group
validator as they are run through their own action validator.

Author: ceorourke

src/sentry/workflow_engine/endpoints/validators/base/workflow.py

@@ -43,7 +43,7 @@ def _split_action_and_condition_group(
         self, action_filter: dict[str, Any]
     ) -> tuple[ListInputData, InputData]:
         try:
-            actions = action_filter["actions"]
+            actions = action_filter.pop("actions")
         except KeyError:
             raise serializers.ValidationError("Missing actions key in action filter")