Support multiple worker_version for dataset extraction

Closes #250 (closed)

dan/datasets/extract/__init__.py

@@ -93,16 +93,18 @@ def add_extract_parser(subcommands) -> None:
     )
 
     parser.add_argument(
-        "--transcription-worker-version",
+        "--transcription-worker-versions",
         type=parse_worker_version,
+        nargs="+",
         help=f"Filter transcriptions by worker_version. Use {MANUAL_SOURCE} for manual filtering.",
-        required=False,
+        default=[],
     )
     parser.add_argument(
-        "--entity-worker-version",
+        "--entity-worker-versions",
         type=parse_worker_version,
+        nargs="+",
         help=f"Filter transcriptions entities by worker_version. Use {MANUAL_SOURCE} for manual filtering.",
-        required=False,
+        default=[],
     )
 
     parser.add_argument(