Bump ciborium-io from 0.2.1 to 0.2.2 #240

Job	Run time
coverage	2m 31s
build (stable)	16s
deny	4m 52s
clippy	14s
build (beta)	20s
doc	12s
build (nightly-2023-04-01)	23s
examples (stable)	14s
formatting	57s
examples (beta)	18s
Rust 1.56.0 MSRV	2m 19s
examples (nightly-2023-04-01)	20s
Build for a no_std target (stable)	17s
Rust 1.57.0 MSRV	2m 24s
Build for a no_std target (beta)	18s
test (stable)	16s
Build for a no_std target (nightly-2023-04-01)	20s
udeps	4m 19s
test (beta)	20s
test (nightly-2023-04-01)	25s
	21m 35s

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