Fix match expression in the TCP metrics guide (#2730)

The destination.service attribute is being deprecated in the favor of
destination.service.host. This commit updates the match expression in
the TCP metrics guide to reflect the same.

Signed-off-by: Venil Noronha <veniln@vmware.com>

content/docs/tasks/telemetry/tcp-metrics/index.md

@@ -90,7 +90,7 @@ will generate and collect automatically.
       namespace: default
     spec:
       match: context.protocol == "tcp"
-             && destination.service == "mongodb.default.svc.cluster.local"
+             && destination.service.host == "mongodb.default.svc.cluster.local"
       actions:
       - handler: mongohandler.prometheus
         instances:

content_zh/docs/tasks/telemetry/tcp-metrics/index.md

@@ -81,7 +81,7 @@ keywords: [遥测,指标,tcp]
       namespace: default
     spec:
       match: context.protocol == "tcp"
-             && destination.service == "mongodb.default.svc.cluster.local"
+             && destination.service.host == "mongodb.default.svc.cluster.local"
       actions:
       - handler: mongohandler.prometheus
         instances: