Prep 0.3.7 release (#94) #259

Job	Run time
deny	3m 32s
coverage	2m 15s
clippy	35s
build (stable)	42s
build (beta)	25s
doc	42s
examples (stable)	19s
formatting	1m 29s
build (nightly-2023-04-01)	25s
examples (beta)	21s
Rust 1.58.0 MSRV	1m 19s
Build for a no_std target (stable)	24s
Rust 1.59.0 MSRV	1m 18s
test (stable)	41s
Build for a no_std target (beta)	22s
examples (nightly-2023-04-01)	23s
test (beta)	25s
Build for a no_std target (nightly-2023-04-01)	37s
udeps	4m 55s
test (nightly-2023-04-01)	27s
	21m 36s

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