fix: prometheus exporter fix

see open-telemetry/opentelemetry-dotnet-contrib#1617

Catalog.ServiceDefaults/Extensions.cs

@@ -82,7 +82,9 @@ private static IHostApplicationBuilder AddOpenTelemetryExporters(this IHostAppli
             builder.Services.AddOpenTelemetry().UseOtlpExporter();
         }
 
-        builder.Services.AddOpenTelemetry().WithMetrics(metrics => metrics.AddPrometheusExporter());
+        builder.Services.AddOpenTelemetry()
+            .WithMetrics(metrics => 
+                metrics.AddPrometheusExporter(options => options.DisableTotalNameSuffixForCounters = true));
 
         return builder;
     }