Bump: compare line-endings-insensitively in WriteIfDifferent

On Windows with autocrlf=true, files come out of git with CRLF while
ToNiceString() generates LF. The byte-level inequality caused
WriteIfDifferent to report "changed" for files git considers identical,
producing a no-op <<DEPENDENCIES_UPDATED>> commit that failed with
"nothing to commit" (Metalama.Vsx 2026.1 PrePublish 324426). Normalize
line endings before comparison to match git's view of file equality.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: PostSharpAgent

src/PostSharp.Engineering.BuildTools/Utilities/TextFileHelper.cs

@@ -1,6 +1,7 @@
 // Copyright (c) SharpCrafters s.r.o. See the LICENSE.md file in the root directory of this repository root for details.
 
 using PostSharp.Engineering.BuildTools.Build;
+using System;
 using System.IO;
 using System.Xml.Linq;
 
@@ -13,7 +14,12 @@ public static bool WriteIfDifferent( string path, XDocument content, BuildContex
 
     public static bool WriteIfDifferent( string path, string content, BuildContext context, bool dry = false )
     {
-        if ( File.Exists( path ) && content == File.ReadAllText( path ) )
+        // Compare line-ending-insensitive: on Windows with autocrlf, the on-disk file can have CRLF while
+        // generated content has LF, making the strings differ even though git considers them identical.
+        // Without this, we report "changed" but the subsequent `git add`/`git commit` becomes a no-op.
+        static string NormalizeLineEndings( string s ) => s.Replace( "\r\n", "\n", StringComparison.Ordinal );
+
+        if ( File.Exists( path ) && NormalizeLineEndings( content ) == NormalizeLineEndings( File.ReadAllText( path ) ) )
         {
             context.Console.WriteMessage( $"The file '{path}' is up to date." );