ci: add release workflow for automating the PyPI publishing process (… #47

Job	Run time
Check Rust dependencies	19s
Check Python bindings (ubuntu-latest)	12s
Check upstream C library (ubuntu-latest, -pt)	1m 34s
Check Rust crate (ubuntu-latest)	33s
Check Python bindings (windows-latest)	56s
Check upstream C library (windows-latest, -pt --cmake_gen ninja)	10m 21s
Check Rust crate (macos-latest)	25s
Check Rust formatting	24s
Check upstream C library (macos-latest)	3m 39s
Check Rust crate (windows-latest)	2m 18s
Check Rust crate (windows-latest, x86_64-pc-windows-gnu)	2m 45s
	23m 26s

Provide feedback