C#: Address review comments.

Author: michaelnebel

csharp/extractor/Semmle.Extraction.CSharp.DependencyFetching/RegistryProxy.cs

@@ -197,12 +197,9 @@ public void SetProcessEnvironment(ProcessStartInfo pi)
 
             if (CertificatePath != null)
             {
+                logger.LogDebug("Setting the SSL certificate path for the registry proxy.");
                 pi.EnvironmentVariables["SSL_CERT_FILE"] = CertificatePath;
             }
-            else
-            {
-                logger.LogDebug("No SSL certificate is configured for the registry proxy.");
-            }
         }
 
         public void Dispose()

csharp/ql/lib/change-notes/2026-10-05-nugetcli-proxy-config.md

@@ -1,4 +1,4 @@
 ---
 category: minorAnalysis
 ---
-* Proxy and certificate environment variables are now set for the subprocess that invokes the NuGet CLI, enabling it to access private registries during this part of the workflow.
+* The subprocess for the NuGet CLI is now provided with the proxy and certificate environment variables needed to access private registries if any are configured.