Require dag_id arg for dags list-runs (#26357)

While it would ideal to transition to a positional arg like was
attempted in #25978, this unfortunately does result in a breaking change
so we cannot do it now.

By instead marking the existing arg as required, we maintain backcompat
while also providing a helpful error message to the user if they forget
it.

This reverts commit ed6ea72.

Author: jedcunningham

airflow/cli/cli_parser.py

@@ -263,6 +263,9 @@ def string_lower_type(val):
 )
 
 # list_dag_runs
+ARG_DAG_ID_REQ_FLAG = Arg(
+    ("-d", "--dag-id"), required=True, help="The id of the dag"
+)  # TODO: convert this to a positional arg in Airflow 3
 ARG_NO_BACKFILL = Arg(
     ("--no-backfill",), help="filter all the backfill dagruns given the dag id", action="store_true"
 )
@@ -1008,7 +1011,7 @@ class GroupCommand(NamedTuple):
         ),
         func=lazy_load_command('airflow.cli.commands.dag_command.dag_list_dag_runs'),
         args=(
-            ARG_DAG_ID,
+            ARG_DAG_ID_REQ_FLAG,
             ARG_NO_BACKFILL,
             ARG_STATE,
             ARG_OUTPUT,

tests/cli/commands/test_dag_command.py

@@ -499,12 +499,13 @@ def test_cli_list_dag_runs(self):
             [
                 'dags',
                 'list-runs',
+                '--dag-id',
+                'example_bash_operator',
                 '--no-backfill',
                 '--start-date',
                 DEFAULT_DATE.isoformat(),
                 '--end-date',
                 timezone.make_aware(datetime.max).isoformat(),
-                'example_bash_operator',
             ]
         )
         dag_command.dag_list_dag_runs(args)