Along the way, make the cache key in GitHub Actions for `config.cache` be more robust in the face of potential env var changes from `Tools/wasm/wasi.py`.
On content update, builds `python` and the docs. Also adds a Dockerfile that should include everything but autoconf 2.69 that's necessary to build CPython and the entire stdlib on Fedora.
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Co-authored-by: Dusty Phillips <dusty@phillips.codes>