chore(pyproject): 修改最大行长

[DuckDuckStudio]

值太大 uv 会解析失败

└─> uv sync
Using CPython 3.14.5 interpreter at: C:\Users\...\AppData\Local\Python\pythoncore-3.14-64\python.exe
Creating virtual environment at: .venv
  × Failed to build `sundry @ file:///D:/.../Sundry`
  ├─▶ Failed to parse metadata from built wheel
  ├─▶ Invalid `pyproject.toml`
  ╰─▶ TOML parse error at line 21, column 15
         |
      21 | line_length = 9999999999999999999999999 # 约等于无行长度限制
         |               ^^^^^^^^^^^^^^^^^^^^^^^^^
      integer number overflowed