Wassima

Changed
- Bumped `pyo3` to version 0.20.3

Fixed
- Certifi fallback loading
- Exception if the underlying rust library could not access the OS store

Changed
- Bumped `pyo3` to version 0.20.2
- Bumped `rustls-native-certs` to version 0.7.0
- Bumped `maturin` to version 1.4.0

Added
- Function `register_ca` so that user may register their own custom CA (PEM, and DER accepted) in addition to the system trust store.

Fixed
- Overrule `SSL_CERT_FILE` environment variable so that system CA is always returned.

Changed
- Function `create_default_ssl_context` now instantiate an `SSLContext` with the Mozilla Recommended Cipher Suite, instead of your system default.
- Bumped `pyo3` to version 0.20.0

Added
- Expose `__version__`.
- Support for `certifi` fallback if you did not pick up a compatible wheel. Expose constant `RUSTLS_LOADED` as a witness.

Added
- Public functions `root_der_certificates`, `root_pem_certificates`, `generate_ca_bundle`, and `create_default_ssl_context`.