Xorjson

Changed

- Source distribution contains all source code required for an offline build.
- PyPI macOS wheels use a `MACOSX_DEPLOYMENT_TARGET` of 10.15 instead of 11.
- Build uses maturin v1.

Changed

- Exceptions raised in `default` are now chained as the `__cause__` attribute
on `orjson.JSONEncodeError`.

Changed

- `orjson.loads()` on an empty document has a specific error message.
- PyPI `manylinux_2_28_x86_64` wheels are compiled for `x86-64-v2`.
- PyPI macOS wheels are only `universal2` and compiled for
`x86-64-v2` and `apple-m1`.

Fixed

- Fix compatibility with CPython 3.12.0a7.
- Fix compatibility with big-endian architectures.
- Fix crash in serialization.

Changed

- Publish musllinux 3.11 wheels.
- Publish s390x wheels.

Fixed

- Fix parallel initialization of orjson.

Changed

- Publish ppc64le wheels.