Improve shell quote handling with proper nested quote support (#217) #599

Job	Run time
Format and Check Deps	1m 30s
Test (namespace-profile-mac-default, aarch64-apple-darwin)	1m 35s
Test (windows-latest, x86_64-pc-windows-msvc)	8m 33s
Test (namespace-profile-mac-default, x86_64-apple-darwin)	4m 19s
Test (ubuntu-latest, x86_64-unknown-linux-gnu)	4m 21s
done	2s
	20m 20s

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