* Use AtomicPyTypeFlags in PyType_FromSlots
PyType_FromSlots still imported the old PyAtomicTypeFlags name.
Assisted-by: Grok:4.7
* Pass CPython test args as a bash array
Assisted-by: Grok:4.7
* Bump workspace version to 0.6.1
Assisted-by: Grok:4.7
* Restore the CPython test step in ci.yaml
Assisted-by: Grok:4.7
Point ruff_python_parser, ruff_python_ast, ruff_text_size and
ruff_source_file at the published rustpython-ruff_* 0.16.5 crates
instead of the git tag. Update chacha20 to 0.10.2 because 0.10.1 is
yanked.
Assisted-by: Claude Code:claude-fable-5-1
Jeong, YunWon