Use generated uuid instead of galaxy job id for k8s job name

Co-authored-by: Marius van den Beek <m.vandenbeek@gmail.com>

lib/galaxy/jobs/runners/util/pykube_util.py

@@ -1,9 +1,7 @@
 """Interface layer for pykube library shared between Galaxy and Pulsar."""
 import logging
 import os
-import random
 import re
-import string
 import uuid
 
 try:
@@ -59,9 +57,7 @@ def produce_unique_k8s_job_name(app_prefix=None, instance_id=None, job_id=None):
     if instance_id and len(instance_id) > 0:
         job_name += "%s-" % instance_id
 
-    unique_id = ''.join(random.choices(string.ascii_lowercase, k=4))
-
-    return job_name + job_id + "-" + unique_id
+    return "{}{}-{}".format(job_name, job_id, uuid.uuid4())
 
 
 def pull_policy(params):