Config mqbconf.xsd: publishAppIdMetrics defaults to true (#936)

Signed-off-by: Yuan Jing Vincent Yan <yyan82@bloomberg.net>

Author: kaikulimu

src/groups/mqb/mqbconfm/mqbconf.xsd

@@ -277,7 +277,7 @@
     </annotation>
     <sequence>
       <element name='appIDs'              type='string' maxOccurs='unbounded'/>
-      <element name='publishAppIdMetrics' type='boolean' default='false'/>
+      <element name='publishAppIdMetrics' type='boolean' default='true'/>
     </sequence>
   </complexType>
 

src/groups/mqb/mqbconfm/mqbconfm_messages.cpp

@@ -299,7 +299,7 @@ class QueueModeFanout:
         },
     )
     publish_app_id_metrics: bool = field(
-        default=False,
+        default=True,
         metadata={
             "name": "publishAppIdMetrics",
             "type": "Element",