restore: Add caching for uid/gid names #149

Job	Run time
Cross checking x86_64-pc-windows-msvc	1m 8s
Cross checking x86_64-pc-windows-gnu	2m 8s
Cross checking x86_64-apple-darwin	6m 40s
Cross checking aarch64-apple-darwin	45s
Cross checking x86_64-unknown-linux-gnu	41s
Cross checking x86_64-unknown-linux-musl	31s
Cross checking aarch64-unknown-linux-gnu	41s
Cross checking i686-unknown-linux-gnu	36s
Cross checking x86_64-unknown-netbsd	1m 14s
Cross checking armv7-unknown-linux-gnueabihf	35s
Cross checking x86_64-pc-windows-msvc	1m 34s
Cross checking x86_64-pc-windows-gnu	7m 11s
Cross checking x86_64-apple-darwin	4m 11s
Cross checking aarch64-apple-darwin	48s
Cross checking x86_64-unknown-linux-gnu	33s
Cross checking x86_64-unknown-linux-musl	35s
Cross checking aarch64-unknown-linux-gnu	3m 58s
Cross checking i686-unknown-linux-gnu	3m 59s
Cross checking x86_64-unknown-netbsd	1m 16s
Cross checking armv7-unknown-linux-gnueabihf	49s
Result (Cross-CI)	3s
	39m 56s

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