MetricsModule: inject DataSourceTaskIdHolder early (apache#16140)

* Explicitly bind ServiceStatusMonitor

* Correct fix

server/src/main/java/org/apache/druid/server/metrics/MetricsModule.java

@@ -111,7 +111,10 @@ public MonitorScheduler getMonitorScheduler(
   )
   {
     List<Monitor> monitors = new ArrayList<>();
-
+    // HACK: when ServiceStatusMonitor is the first to be loaded, it introduces a circular dependency between
+    // CliPeon.runTask and CliPeon.getDataSourceFromTask/CliPeon.getTaskIDFromTask. The reason for this is unclear
+    // but by injecting DataSourceTaskIdHolder early this cycle is avoided.
+    injector.getInstance(DataSourceTaskIdHolder.class);
     for (Class<? extends Monitor> monitorClass : Iterables.concat(monitorsConfig.getMonitors(), monitorSet)) {
       monitors.add(injector.getInstance(monitorClass));
     }