Update maturin version to ~=1.0

[kmichel-aiven]

This allows building blake3 with maturin 1.0, 1.1, 1.2 and future compatible versions.

The package was built and tested with each latest minor version of maturin since 0.14 (0.15.3, 1.0.1, 1.1.0 and 1.2.3) by incrementally increasing the upper bound and running :

# edit version then :
pip install --verbose --no-binary :all: . && pytest

https://www.maturin.rs/changelog