Fix SDK version sorting to use version comparison instead of string comparison

Changed VisualStudioSafeVersionsExtractor.GetReasonRequiredStrings to sort by Bundle object (which uses semantic version comparison) instead of DisplayName string. This fixes the issue where version 10.0.100 was incorrectly sorted before 2.x, 5.x, etc. due to lexicographic string ordering where "1" < "2".

Co-authored-by: marcpopMSFT <12663534+marcpopMSFT@users.noreply.github.com>

Author: Copilot

src/dotnet-core-uninstall/Shared/VSVersioning/VisualStudioSafeVersionsExtractor.cs

@@ -127,7 +127,7 @@ public static Dictionary<Bundle, string> GetReasonRequiredStrings(IEnumerable<Bu
             return requirementStringResults
                 .GroupBy(pair => pair.bundle)
                 .Select(group => group.First()) // Remove duplicates
-                .OrderByDescending(pair => pair.bundle.DisplayName)
+                .OrderByDescending(pair => pair.bundle)
                 .ToDictionary(i => i.bundle, i => i.Item2);
         }
     }