Fix logging

Configure logging in the right way.

Author: martincostello

docker/docker-compose-aspnetcore/attributes/oats.default-resource-attributes.yaml

@@ -4,7 +4,7 @@ input:
   - path: /api/HttpClient/Get
 expected:
   logs:
-    - logql: '{service_name="unknown_service:dotnet"} |~ `Application started.`'
+    - logql: '{service_name="aspnetcore"} |~ `Application started.`'
       contains:
         - 'Application started'
   traces:

examples/net8.0/aspnetcore/Program.cs

@@ -11,8 +11,9 @@
 
 var builder = WebApplication.CreateBuilder(args);
 
+builder.Logging.AddOpenTelemetry(builder => builder.UseGrafana());
+
 builder.Services.AddOpenTelemetry()
-    .WithLogging(builder => builder.AddOtlpExporter())
     .WithMetrics(builder => builder.UseGrafana())
     .WithTracing(builder => builder.UseGrafana().AddConsoleExporter());