C#: Adjust change note

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Author: michaelnebel

csharp/ql/lib/change-notes/2026-10-28-nugetcli-proxy-config.md

@@ -2,4 +2,4 @@
 category: minorAnalysis
 ---
 
-- When private NuGet registries are configured, the extractor now attempts to restore dependencies listed in `packages.config` files using `dotnet restore` instead of the NuGet CLI so that the private registry configuration is respected.
+- When private NuGet registries are configured, the extractor only attempts to restore dependencies listed in `packages.config` files using `dotnet restore` instead of the NuGet CLI so that the private registry configuration is respected.