Forgot to start Draupnir listening in appservice.

We need to look at Draupnir's .start method and make it `void`.
The report poller should just throw if it fails without being
caught by `Task`.

We also need to test the `toggle` in appservice in integration
tests.

src/draupnirfactory/StandardDraupnirManager.ts

@@ -8,7 +8,12 @@
 // https://github.com/matrix-org/mjolnir
 // </text>
 
-import { ActionError, ActionResult, isError } from "matrix-protection-suite";
+import {
+  ActionError,
+  ActionResult,
+  Task,
+  isError,
+} from "matrix-protection-suite";
 import { IConfig } from "../config";
 import { DraupnirFactory } from "./DraupnirFactory";
 import { Draupnir } from "../Draupnir";
@@ -83,6 +88,7 @@ export class StandardDraupnirManager {
     }
     this.draupnir.set(clientUserID, draupnir.ok);
     this.failedDraupnir.delete(clientUserID);
+    void Task(draupnir.ok.start());
     return draupnir;
   }