deps: update netlink-packet-route to 0.30 #279

Job	Run time
Rustfmt	12s
Check (macOS-latest)	33s
Check (windows-latest)	57s
Cross compile (aarch64-linux-android)	1m 0s
Cross compile (x86_64-unknown-netbsd)	38s
Cross compile (i686-unknown-linux-musl)	47s
Cross compile (armv7-linux-androideabi)	1m 4s
Check (ubuntu-latest)	17s
Cross compile (x86_64-unknown-freebsd)	39s
Cross compile (x86_64-unknown-linux-musl)	47s
	6m 54s

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