Adding validation for cli

Author: kumar-shivam-ranjan

ads/aqua/model/model.py

@@ -33,6 +33,7 @@
     read_file,
     upload_folder,
 )
+from ads.aqua.config.config import get_valid_tasks
 from ads.aqua.constants import (
     AQUA_MODEL_ARTIFACT_CONFIG,
     AQUA_MODEL_ARTIFACT_CONFIG_MODEL_NAME,
@@ -407,7 +408,12 @@ def edit_registered_model(self, id, inference_container, enable_finetuning, task
 
                 custom_metadata_list.remove("modelDescription")
                 if task:
-                    freeform_tags.update({Tags.TASK: task})
+                    if task in get_valid_tasks():
+                        freeform_tags.update({Tags.TASK: task})
+                    else:
+                        raise AquaValueError(
+                            f"Failed to edit model with the given task parameter. Acceptable values are: {get_valid_tasks()}"
+                        )
 
                 updated_custom_metadata_list = [
                     Metadata(**metadata)