Import upstream version 1.5.2

.bumpversion.cfg

.github/workflows/ci.yml

.github/workflows/python-publish.yml

.gitignore

CHANGELOG.md

README.md

docs/reference.rst

emscripten/.gitignore

emscripten/_sysconfigdata__emscripten_wasm32-emscripten.py

emscripten/emcc_wrapper.py

emscripten/pyo3_config.ini

emscripten/runner.js

examples/hello-world-script/Cargo.lock

examples/hello-world-script/Cargo.toml

examples/hello-world-script/MANIFEST.in

examples/hello-world-script/hello_world/__init__.py

examples/hello-world-script/noxfile.py

examples/hello-world-script/pyproject.toml

examples/hello-world-script/pytest.ini

examples/hello-world-script/setup.py