Bug Fix for MD failure for deployment of Aqua models registered from OSS (#1016)

Author: VipulMascarenhas

ads/aqua/modeldeployment/deployment.py

@@ -185,7 +185,7 @@ def create(
                 tags[tag] = aqua_model.freeform_tags[tag]
 
         tags.update({Tags.AQUA_MODEL_NAME_TAG: aqua_model.display_name})
-        tags.update({Tags.TASK: aqua_model.freeform_tags.get(Tags.TASK, None)})
+        tags.update({Tags.TASK: aqua_model.freeform_tags.get(Tags.TASK, UNKNOWN)})
 
         # Set up info to get deployment config
         config_source_id = model_id
@@ -533,16 +533,22 @@ def list(self, **kwargs) -> List["AquaDeployment"]:
         return results
 
     @telemetry(entry_point="plugin=deployment&action=delete", name="aqua")
-    def delete(self,model_deployment_id:str):
-        return self.ds_client.delete_model_deployment(model_deployment_id=model_deployment_id).data
+    def delete(self, model_deployment_id: str):
+        return self.ds_client.delete_model_deployment(
+            model_deployment_id=model_deployment_id
+        ).data
 
-    @telemetry(entry_point="plugin=deployment&action=deactivate",name="aqua")
-    def deactivate(self,model_deployment_id:str):
-        return self.ds_client.deactivate_model_deployment(model_deployment_id=model_deployment_id).data
+    @telemetry(entry_point="plugin=deployment&action=deactivate", name="aqua")
+    def deactivate(self, model_deployment_id: str):
+        return self.ds_client.deactivate_model_deployment(
+            model_deployment_id=model_deployment_id
+        ).data
 
-    @telemetry(entry_point="plugin=deployment&action=activate",name="aqua")
-    def activate(self,model_deployment_id:str):
-        return self.ds_client.activate_model_deployment(model_deployment_id=model_deployment_id).data
+    @telemetry(entry_point="plugin=deployment&action=activate", name="aqua")
+    def activate(self, model_deployment_id: str):
+        return self.ds_client.activate_model_deployment(
+            model_deployment_id=model_deployment_id
+        ).data
 
     @telemetry(entry_point="plugin=deployment&action=get", name="aqua")
     def get(self, model_deployment_id: str, **kwargs) -> "AquaDeploymentDetail":