Update roslyn to 5.0.0-1.25263.3

Author: dibarbet

CHANGELOG.md

@@ -4,6 +4,16 @@
 - Debug from .csproj and .sln [#5876](https://github.com/dotnet/vscode-csharp/issues/5876)
 
 # 2.78.x
+* Bump Roslyn to 5.0.0-1.25263.3 (PR: [#8287](https://github.com/dotnet/vscode-csharp/pull/8287))
+  * File based programs IDE support(PR: [#78488](https://github.com/dotnet/roslyn/pull/78488))
+  * Gracefully handle span mapping failing(PR: [#78520](https://github.com/dotnet/roslyn/pull/78520))
+  * Cancel running requests when the connection terminates(PR: [#78525](https://github.com/dotnet/roslyn/pull/78525))
+  * Cache extension method import info per project ID(PR: [#78542](https://github.com/dotnet/roslyn/pull/78542))
+  * Fix crash in 'introduce variable' on top-level statements(PR: [#78507](https://github.com/dotnet/roslyn/pull/78507))
+  * Fix information logs getting logged as debug in VSCode(PR: [#78522](https://github.com/dotnet/roslyn/pull/78522))
+  * Shorten log category name(PR: [#78526](https://github.com/dotnet/roslyn/pull/78526))
+  * Reduce allocations during SourceGeneration(PR: [#78403](https://github.com/dotnet/roslyn/pull/78403))
+  * Fix razor redirect(PR: [#78448](https://github.com/dotnet/roslyn/pull/78448))
 * Bump Razor to 10.0.0-preview.25262.1(PR: [#8283](https://github.com/dotnet/vscode-csharp/pull/8283))
   * Compiler: Replace SyntaxListBuilder with PooledArrayBuilder<T> and miscellaneous performance tweaks (PR: [#11841](https://github.com/dotnet/razor/pull/11841))
   * Allow html requests to be properly cancelled (PR: [#11829](https://github.com/dotnet/razor/pull/11829))

package.json

@@ -40,7 +40,7 @@
     "workspace"
   ],
   "defaults": {
-    "roslyn": "5.0.0-1.25256.5",
+    "roslyn": "5.0.0-1.25263.3",
     "omniSharp": "1.39.12",
     "razor": "10.0.0-preview.25262.1",
     "razorOmnisharp": "7.0.0-preview.23363.1",