Change default reporting strategy for transports to last to be backward compatible

application/src/main/resources/thingsboard.yml

@@ -875,7 +875,7 @@ transport:
       # - 'last': Only the last activity event in the reporting period is reported.
       # - 'first-and-last': Both the first and last activity events in the reporting period are reported.
       # - 'all': All activity events in the reporting period are reported.
-    reporting_strategy: "${TB_TRANSPORT_ACTIVITY_REPORTING_STRATEGY:first-and-last}"
+    reporting_strategy: "${TB_TRANSPORT_ACTIVITY_REPORTING_STRATEGY:last}"
   json:
     # Cast String data types to Numeric if possible when processing Telemetry/Attributes JSON
     type_cast_enabled: "${JSON_TYPE_CAST_ENABLED:true}"