chore: bump legacy workspace to 0.16.0 #653

Job	Run time
rust-library-base / Feature Checks	1m 27s
rust-library-base / Base Checks / Docs	53s
rust-library-base / Base Checks / Clippy	58s
rust-library-base / Base Checks / doctest	1m 35s
rust-library-base / Base Checks / Test Suite	3m 37s
rust-library-base / Base Checks / Rustfmt	40s
	9m 10s

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