feat: return list of errors in new format to worker (#22) #116

Job	Run time
build-and-test / build_and_publish	2m 17s
Determine image tag	3s
Build OCI images (post-compute) / build	7m 42s
Build OCI images (pre-compute) / build	6m 20s
Build TEE images (registry.scontain.com/scone-debug/iexec-sconify-image-unlocked, 5.9.1, /app/tee...	1m 6s
Build TEE images (registry.scontain.com/scone-debug/iexec-sconify-image-unlocked, 5.9.1, /app/tee...	1m 17s
	18m 45s

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