Add tests for `TryFrom<&mut [T]>` for `&mut Array` #420

Job	Run time
careful	1m 2s
clippy	20s
miri (s390x-unknown-linux-gnu)	1m 10s
miri (x86_64-unknown-linux-gnu)	52s
doc	24s
rustfmt	6s
test (1.85.0)	52s
test (stable)	44s
coverage	27s
build (stable, thumbv7em-none-eabi)	1m 19s
build (stable, wasm32-unknown-unknown)	1m 17s
build (stable, armv7a-none-eabi)	1m 16s
build (1.85.0, thumbv7em-none-eabi)	1m 20s
build (1.85.0, wasm32-unknown-unknown)	1m 19s
build (1.85.0, armv7a-none-eabi)	1m 23s
	13m 51s

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