Fix NuGet updated file line endings

Normalize modified dependency files to the EOL representation stored in the Git index while preserving worktree comparison and BOM behavior.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: bc1bef91-40ca-49fc-b3a6-08ec5bf5731f