Herb: Expose `Herb.parse_puby` to parse Ruby with Prism #3732

Job	Run time
main	4m 10s
preview-check	3s
Cleanup docs preview deployment	0s
Publish preview packages	0s
Publish VSCode extension	0s
Deploy docs preview to Cloudflare Pages	0s
Publish packages to npm	0s
main	9m 13s
preview-check	3s
Cleanup docs preview deployment	-805s
Deploy docs preview to Cloudflare Pages	36s
Publish preview packages	21s
Publish packages to npm	0s
Publish VSCode extension	0s
	1m 1s

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