fix: generated external modules don't import from metadata refs (#1110) #484

Job	Run time
Build Controller Docker Image	1m 20s
Build Controller Docker Image	1m 12s
Release JARs	3m 50s
Release JARs	3m 50s
Release Go Binaries	55s
Release Go Binaries	54s
Build Runner Docker Image	2m 7s
Build Runner Docker Image	2m 23s
Release Hermit	0s
Release Hermit	0s
Release Assets	0s
Release Assets	0s
	16m 31s

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