fix(engine): count canceled jobs in metrics

This behavior was broken in an earlier commit, when we switched from
writing a Cancel Job command to a Job Canceled event.

(cherry picked from commit 0aac0d7)

engine/src/main/java/io/camunda/zeebe/engine/processing/bpmn/behavior/BpmnJobBehavior.java

@@ -183,6 +183,7 @@ private void writeJobCanceled(final long jobKey) {
     if (CANCELABLE_STATES.contains(state)) {
       final JobRecord job = jobState.getJob(jobKey);
       stateWriter.appendFollowUpEvent(jobKey, JobIntent.CANCELED, job);
+      jobMetrics.jobCanceled(job.getType());
     }
   }