refactor(build): migrate Python wheel builds to maturin

Replace manual setuptools wheel building with maturin for the Rust binary CLI tool.
This streamlines the PyPI release process by building platform-specific
wheels containing the pre-compiled Rust binary directly via `maturin build`.
Also updates package references from 'gh-templates' to 'gitforge' in the
workflow and Homebrew formula.

Author: RafaelJohn9