Update pyo3 code #636

Job	Run time
Miri	2m 27s
clippy	1m 4s
benchmarks	1m 54s
documentation	1m 17s
Optional features (approx selected)	35s
Optional features (none selected)	31s
rustfmt	14s
static SuiteSparse (stable, ubuntu-20.04, stable)	40s
test (msrv, ubuntu-20.04, 1.77.0)	1m 4s
static SuiteSparse (macos, macos-latest, stable)	41s
test (stable, ubuntu-20.04, stable)	1m 0s
test (beta, ubuntu-20.04, beta)	1m 7s
test (nightly, ubuntu-20.04, nightly)	1m 3s
static SuiteSparse (win-msvc, windows-2019, stable)	1m 43s
test (macos, macos-latest, stable)	49s
static SuiteSparse (win-gnu, windows-2019, stable)	1m 52s
test (win-msvc, windows-2019, stable)	3m 24s
test (win-gnu, windows-2019, stable)	2m 39s
	24m 4s

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