Description of Bug

The current implementation cannot correctly retrieve the status of file paths containing multibyte characters such as UTF-8. Here's how to reproduce the issue:

docker run -it --rm ruby:3.4-bullseye bash

gem install -N git:4.0.4

cd /tmp
git init
touch 👍️
git add 👍️
ruby -rgit -e 'p Git.open(".").status.first.path'
# => "\"\\360\\237\\221\\215\\357\\270\\217\""
#     ^^😱

The path contains a quoted string. The current git/lib.rb has the unescape_quoted_path method, and some processes use this method. But it's not used consistently across all file status retrieval operations.

Fix

I added tests for file paths containing multibyte characters to test_status.rb and modified various parts of git/lib.rb to use the unescape_quoted_path method so that these tests pass.

Since this change exceeds the maximum class line count defined in .rubocop_todo.yml, I've increased the limit. I believe the complicated lib.rb will naturally improve through the ongoing architectural redesign.