Update Roslyn to 4.12.0-2.24408.4 and update changelog

Author: dibarbet

CHANGELOG.md

@@ -4,13 +4,17 @@
 - Debug from .csproj and .sln [#5876](https://github.com/dotnet/vscode-csharp/issues/5876)
 
 # Latest
-* Bump Roslyn to 4.12.0-2.24401.2 (PR: [#7413](https://github.com/dotnet/vscode-csharp/pull/7413))
+* Bump Roslyn to 4.12.0-2.24408.4 (PR: [#7429](https://github.com/dotnet/vscode-csharp/pull/7429))
   * Reduce allocations in SyntaxEquivalence.AreEquivalent by using a more appropriate pooling mechanism for the stack it uses to walk trees. (PR: [#74610](https://github.com/dotnet/roslyn/pull/74610))
   * Reduce allocations in SyntaxNodeExtensions.GetMembers to instead execute a given lambda over the collection. (PR: [#74628](https://github.com/dotnet/roslyn/pull/74628))
   * Modify ISyntaxFacts methods to allocate less (PR: [#74596](https://github.com/dotnet/roslyn/pull/74596))
   * Fix cases where unused private members were not grayed out (PR: [#74589](https://github.com/dotnet/roslyn/pull/74589))
   * Fix URI handling when comparing encoded and unencoded URIs (PR: [#74544](https://github.com/dotnet/roslyn/pull/74544))
+  * Only report project load events for initial load in VSCode (PR: [#74688](https://github.com/dotnet/roslyn/pull/74688))
+  * Reduce allocations in AbstractSymbolCompletionProvider.CreateItems (PR: [#74670](https://github.com/dotnet/roslyn/pull/74670))
 * Bump xamltools to 17.12.35209.18 (PR: [#7428](https://github.com/dotnet/vscode-csharp/pull/7428))
+* Task 2187810: [VS Code] Add OnEnter rules to indent tags (PR: [#7426](https://github.com/dotnet/vscode-csharp/pull/7426))
+* Fix completion handler bug that causes language server to crash (#7401) (PR: [#7406](https://github.com/dotnet/vscode-csharp/pull/7406))
 
 # 2.41.x
 * Bump Roslyn to 4.12.0-1.24376.3 (PR: [#7393](https://github.com/dotnet/vscode-csharp/pull/7393))

package.json

@@ -37,7 +37,7 @@
     }
   },
   "defaults": {
-    "roslyn": "4.12.0-2.24407.3",
+    "roslyn": "4.12.0-2.24408.4",
     "omniSharp": "1.39.11",
     "razor": "9.0.0-preview.24366.2",
     "razorOmnisharp": "7.0.0-preview.23363.1",