deps: update pyo3 requirement from 0.22.3 to 0.23.1 #637

Job	Run time
documentation	1m 18s
benchmarks	2m 9s
clippy	1m 2s
Miri	2m 28s
Optional features (approx selected)	38s
Optional features (none selected)	29s
rustfmt	12s
static SuiteSparse (stable, ubuntu-20.04, stable)	34s
test (msrv, ubuntu-20.04, 1.77.0)	1m 32s
static SuiteSparse (macos, macos-latest, stable)	45s
test (stable, ubuntu-20.04, stable)	1m 10s
static SuiteSparse (win-msvc, windows-2019, stable)	1m 27s
test (beta, ubuntu-20.04, beta)	1m 17s
static SuiteSparse (win-gnu, windows-2019, stable)	1m 48s
test (nightly, ubuntu-20.04, nightly)	1m 4s
test (macos, macos-latest, stable)	51s
test (win-msvc, windows-2019, stable)	2m 41s
test (win-gnu, windows-2019, stable)	2m 30s
	23m 55s

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