fix this

Author: Jorghi12

runpod/serverless/modules/rp_job.py

@@ -155,7 +155,7 @@ async def run_job_generator(
     '''
     try:
         job_output = handler(job)
-        for output_partial in job_output:
+        async for output_partial in job_output:
             yield {"output": output_partial}
     except Exception as err:    # pylint: disable=broad-except
         log.error(f'Error while running job {job["id"]}: {err}')