ast_transformer.py (The internal library still uses node.s, while Python 3.12+ recommends using node.value)

This is the prompt I encountered during runtime. I think we might need to update the compatibility of this part to be compatible with the latest Python 3.14.
C:\python\.venv\Lib\site-packages\taichi\lang\ast\ast_transformer.py:393: DeprecationWarning: Attribute s is deprecated and will be removed in Python 3.14; use value instead
  format_str = values[0].s
