Enable TaskMonitor warnings of slow tasks by default

HBase has a TaskMonitor that can warn on any tasks that take too long.
https://github.com/apache/hbase/blob/47996d6c2128815e45bb8bdb6e3a470bfddd6106/hbase-server/src/main/java/org/apache/hadoop/hbase/monitoring/TaskMonitor.java#L49

By default it does not warn as the setting hbase.taskmonitor.rpc.warn.time defaults to 0 which disables the check. But it's definitely useful to have a warning like this.

We saw tasks stuck for a week at a customer and this went unnoticed. As I'm not 100% sure on which tasks (i.e. also Procedures?) are monitored I suggest a rather high threshold.
Maybe 1 hour? (Even though most tasks should finish within seconds)

This is a warning that we then - later - should extract from the logs to convert into an alert and/or at least have a dashboard (in Grafana or Opensearch Dashboard) to show these.
The log message will start with: "Task may be stuck"

Also note that older versions have a bug that can wrong warnings: https://issues.apache.org/jira/browse/HBASE-22935

Comienza con el archivo vinculado hbase-server/src/main/java/org/apache/hadoop/hbase/monitoring/TaskMonitor.java e inspecciona cómo hbase.taskmonitor.rpc.warn.time desactiva la comprobación. Confirma qué tareas se supervisan y establece el umbral predeterminado, por ejemplo, una hora. Se considera terminado cuando las advertencias sobre tareas lentas están habilitadas de forma predeterminada sin el comportamiento anterior de advertencias falsas descrito en HBASE-22935.