Add debug logs for updated endpoint

Author: dudikeleti

tracer/src/Datadog.Trace/Debugger/Upload/DiagnosticsUploadApi.cs

@@ -23,7 +23,11 @@ private DiagnosticsUploadApi(
             IGitMetadataTagsProvider gitMetadataTagsProvider)
             : base(apiRequestFactory, gitMetadataTagsProvider)
         {
-            discoveryService.SubscribeToChanges(c => Endpoint = c.DiagnosticsEndpoint);
+            discoveryService.SubscribeToChanges(c =>
+            {
+                Endpoint = c.DiagnosticsEndpoint;
+                Log.Debug("DiagnosticsUploadApi: Updated endpoint to {Endpoint}", Endpoint);
+            });
         }
 
         public static DiagnosticsUploadApi Create(

tracer/src/Datadog.Trace/Debugger/Upload/LogUploadApi.cs

@@ -23,7 +23,11 @@ private LogUploadApi(
             IGitMetadataTagsProvider gitMetadataTagsProvider)
             : base(apiRequestFactory, gitMetadataTagsProvider)
         {
-            discoveryService.SubscribeToChanges(c => Endpoint = c.DebuggerEndpoint);
+            discoveryService.SubscribeToChanges(c =>
+            {
+                Endpoint = c.DebuggerEndpoint;
+                Log.Debug("LogUploadApi: Updated endpoint to {Endpoint}", Endpoint);
+            });
         }
 
         public static LogUploadApi Create(

tracer/src/Datadog.Trace/Debugger/Upload/SnapshotUploadApi.cs

@@ -26,6 +26,7 @@ private SnapshotUploadApi(
             discoveryService.SubscribeToChanges(c =>
             {
                 Endpoint = c.DebuggerV2Endpoint ?? c.DiagnosticsEndpoint;
+                Log.Debug("SnapshotUploadApi: Updated endpoint to {Endpoint}", Endpoint);
             });
         }
 

tracer/src/Datadog.Trace/Debugger/Upload/SymbolUploadApi.cs

@@ -40,7 +40,11 @@ private SymbolUploadApi(
             _apiRequestFactory = apiRequestFactory;
             _eventMetadata = eventMetadata;
             _enableCompression = enableCompression;
-            discoveryService.SubscribeToChanges(c => Endpoint = c.SymbolDbEndpoint);
+            discoveryService.SubscribeToChanges(c =>
+            {
+                Endpoint = c.SymbolDbEndpoint;
+                Log.Debug("SymbolUploadApi: Updated endpoint to {Endpoint}", Endpoint);
+            });
         }
 
         internal static IBatchUploadApi Create(