Invert blocklist scheduler dependency to task callback

backend/tests/test_tasks/test_blocklist_import.py

@@ -9,7 +9,7 @@ registers the correct APScheduler trigger for each frequency preset.
 from __future__ import annotations
 
 from typing import Any
-from unittest.mock import AsyncMock, MagicMock, call, patch
+from unittest.mock import ANY, AsyncMock, MagicMock, call, patch
 
 import pytest
 
@@ -42,6 +42,7 @@ def _make_app(
         fail2ban_socket="/var/run/fail2ban/fail2ban.sock",
         database_path="/tmp/fake.db",
     )
+    app.state.runtime_settings = None
     return app
 
 
@@ -111,6 +112,7 @@ class TestRunImport:
             app.state.db,
             app.state.http_session,
             app.state.settings.fail2ban_socket,
+            ban_ip=ANY,
         )
 
     @pytest.mark.asyncio
@@ -196,6 +198,7 @@ class TestApplySchedule:
         """
         app = MagicMock()
         app.state.scheduler = scheduler
+        app.state.runtime_settings = None
         return app
 
     def test_apply_schedule_daily_registers_cron_trigger(self) -> None: