Rust

[clickhouse] Use chrono::UTC for distributed_ddl_queue endpoint #39180

Job	Run time
build-docs	5m 48s
check-features	13m 57s
check-omicron-deployment (ubuntu-22.04)	5m 19s
check-style	19s
check-omicron-deployment (macos-14)	9m 32s
clippy-lint	8m 15s
	43m 10s

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