fix(execute_command): add cleanup for command after task execution

Author: akosyakov

examples/execute_command.py

@@ -50,6 +50,7 @@ def main() -> None:
             if execution.status.phase == "TASK_EXECUTION_PHASE_FAILED":
                 print(f"Task execution failed: {execution.status.failure_message}")
         finally: 
+            # Clean up command
             delete_command(client, task_id)
     finally:
         # Clean up environment