Bump crossbeam-channel from 0.5.8 to 0.5.9 #7025

Job	Run time
Lints	1m 5s
build-linux-arm (nightly)	13m 29s
build-linux-musl (nightly)	7m 27s
build-linux-arm (stable)	5m 36s
build (ubuntu-latest, nightly)	2m 7s
build-linux-arm (1.65)	5m 28s
build-linux-musl (stable)	2m 55s
build (ubuntu-latest, stable)	2m 5s
Changelog Test	4s
build (ubuntu-latest, 1.65)	6m 35s
build-linux-musl (1.65)	3m 25s
Security audit	11s
udeps	7m 23s
build (macos-latest, nightly)	10m 53s
build (macos-latest, stable)	10m 55s
build (macos-latest, 1.65)	16m 55s
build (windows-latest, nightly)	6m 24s
build (windows-latest, stable)	4m 6s
build (windows-latest, 1.65)	16m 24s
	2h 3m 27s

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