[stress] Make the log verbosity configurable but "normal" by default #7827

tools/stress-cluster/services/otelcollector/otel-collector-config.yml

@@ -23,6 +23,6 @@ service:
 
 exporters:
   logging:
-    verbosity: detailed
+    verbosity: "${env:OTEL_LOG_LEVEL}"
   azuremonitor:
     connection_string: "${env:APPLICATIONINSIGHTS_CONNECTION_STRING}"