Update roslyn

Author: dibarbet

CHANGELOG.md

@@ -4,7 +4,8 @@
 - Debug from .csproj and .sln [#5876](https://github.com/dotnet/vscode-csharp/issues/5876)
 
 # 2.76.x
-* Bump Roslyn to 5.0.0-1.25256.5 (PR: [#8254](https://github.com/dotnet/vscode-csharp/pull/8254))
+* Bump Roslyn to 5.0.0-1.25257.6 (PR: [#8264](https://github.com/dotnet/vscode-csharp/pull/8264))
+  * Fix razor redirect(PR: [#78448](https://github.com/dotnet/roslyn/pull/78448))
   * Do not parse URIs during LSP serialization/deserialization(PR: [#76691](https://github.com/dotnet/roslyn/pull/76691))
   * Ensure hover markdown for supported platforms uses non-breaking spaces for indentation(PR: [#78405](https://github.com/dotnet/roslyn/pull/78405))
 * Bump Razor to 10.0.0-preview.25252.1 (PR: [#8239](https://github.com/dotnet/vscode-csharp/pull/8239))

package.json

@@ -40,7 +40,7 @@
     "workspace"
   ],
   "defaults": {
-    "roslyn": "5.0.0-1.25256.5",
+    "roslyn": "5.0.0-1.25257.6",
     "omniSharp": "1.39.12",
     "razor": "10.0.0-preview.25252.1",
     "razorOmnisharp": "7.0.0-preview.23363.1",