Update instrumentation/jmx-metrics/library/src/main/resources/jmx/rules/tomcat.yaml

Co-authored-by: SylvainJuge <[email protected]>

Author: robsunday

instrumentation/jmx-metrics/library/src/main/resources/jmx/rules/tomcat.yaml

@@ -55,7 +55,7 @@ rules:
       tomcat.context: param(context)
     mapping:
       activeSessions:
-        metric: active_session.count
+        metric: session.active.count
         type: updowncounter
         unit: "{session}"
         desc: The number of active sessions.