Updating CODEOWNERS - Azure Monitor OTEL Exporter (Azure#22018)

Author: vishweshbankwar

.github/CODEOWNERS

@@ -401,7 +401,7 @@ sdk/monitor/Azure.Monitor.Query            @pakrym
 
 # PRLabel: %Monitor - Exporter
 # ServiceLabel: %Monitor - Exporter %Service Attention
-/sdk/monitor/Azure.Monitor.OpenTelemetry.*/     @cijothomas @reyang @rajkumar-rangaraj @TimothyMothra
+/sdk/monitor/Azure.Monitor.OpenTelemetry.*/     @cijothomas @reyang @rajkumar-rangaraj @TimothyMothra @vishweshbankwar
 
 # ServiceLabel: %Monitor - Metrics %Service Attention
 #/<NotInRepo>/            @AzMonEssential