Rust

Add `cockroach-admin` dropshot server #32583

Job	Run time
build-docs	10m 56s
check-omicron-deployment (ubuntu-22.04)	10m 57s
check-style	18s
check-omicron-deployment (macos-14)	9m 35s
clippy-lint	11m 38s
	43m 24s

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