code: def random_workspace_name():
      """Generate a random workspace name with digits and letters."""
      rand = "".join(
          random.choices(string.ascii_uppercase + string.digits, k=6)
      )
      return f"JINA_TEST_WORKSPACE_{rand}"
  
file_path: jina/tests/conftest.py
imports: import asyncio
  import os
  import random
  import string
  import tempfile
  import time
  import pytest
  from jina import helper
label_desc: Use image node_id 1 for calling a global function with example usage: random_workspace_name() and returns: str, rand