Bump dyn-clone from 1.0.17 to 1.0.19 #516

Job	Run time
rust_ci (macos-latest, beta)	41s
rust_ci (ubuntu-latest, beta)	30s
rust_ci (windows-latest, stable)	28s
rust_ci (macos-latest, nightly)	18s
rust_ci (ubuntu-latest, nightly)	32s
rust_ci (macos-latest, stable)	37s
rust_ci (windows-latest, beta)	32s
rust_ci (ubuntu-latest, stable)	44s
rust_ci (windows-latest, nightly)	37s
	4m 59s

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