Bump serde_yaml from 0.9.25 to 0.9.30 #2781

Job	Run time
Format	26s
Deny (advisories)	25s
Deny (bans licenses sources)	23s
Clippy	1m 15s
Check (stable)	1m 12s
Cross (aarch64-linux-android)	4m 14s
Check (1.70.0)	1m 26s
Cross (aarch64-unknown-linux-gnu)	3m 12s
Cross (aarch64-unknown-linux-musl)	3m 11s
Documentation	52s
Hack	2m 16s
Lint markdown files	55s
Tests	4m 26s
Tools	2m 23s
	26m 36s

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