Fix cross-platform test: disable git line ending conversion on clone

Git's autocrlf converts LF→CRLF on Windows checkout, making file
content differ between platforms. Force LF everywhere so the same
bytes are archived on both OSes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: AngeloTadeucci

.github/workflows/determinism.yml

@@ -26,7 +26,7 @@ jobs:
         run: dotnet --info
 
       - name: Clone test data
-        run: git clone --depth 1 https://github.com/MS2Community/MapleStory2-XML.git test-data
+        run: git clone --depth 1 -c core.autocrlf=false -c core.eol=lf https://github.com/MS2Community/MapleStory2-XML.git test-data
 
       - name: Build
         run: dotnet build MS2Tools.sln -c Release