add `is_safe` to rust UUID #225

Job	Run time
Linux: x86_64 Python 3.10	1m 15s
Linux: x86_64 Python 3.11	59s
Check code quality	16s
Linux: aarch64	2m 8s
MacOS	59s
Linux: x86_64 Python 3.12	1m 9s
Linux: armv7	1m 58s
Linux: x86_64-unknown-linux-musl	54s
Linux: ppc64le	1m 49s
Linux: i686 Python 3.10	1m 10s
Linux: i686-unknown-linux-musl	58s
Linux: aarch64-unknown-linux-musl	48s
Linux: i686 Python 3.11	1m 11s
Linux: i686 Python 3.12	1m 10s
Source Distribution	25s
Windows: x64	1m 39s
Windows: x86	3m 47s
Release	0s
Publish docs	0s
	22m 35s

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