flux-jobs: support list of queues in -q, --queue option

Problem: flux-jobs(1) only supports querying jobs from one queue
at a time.

Support a multiple queues.

Author: grondo

src/cmd/flux-jobs.py

@@ -265,10 +265,10 @@ def parse_args():
     parser.add_argument(
         "-q",
         "--queue",
-        action=FilterAction,
-        type=str,
-        metavar="QUEUE",
-        help="Limit output to specific queue",
+        action=FilterActionSetUpdate,
+        default=set(),
+        metavar="QUEUE,...",
+        help="Limit output to specific queue or queues",
     )
     parser.add_argument(
         "-o",