WIP Set podTemplate on Tasks to enable multi-arch builds with Matrix #59

Job	Run time
build	1m 8s
Multi-arch build	13m 42s
test	5m 4s
lint	3m 32s
Check generated code	3m 16s
e2e-tests / e2e tests (k8s-oldest, beta)	26m 8s
e2e-tests / e2e tests (k8s-plus-one, alpha)	29m 1s
e2e-tests / e2e tests (k8s-oldest, alpha)	28m 40s
e2e-tests / e2e tests (k8s-oldest, stable)	23m 11s
e2e-tests / e2e tests (k8s-plus-one, beta)	26m 39s
e2e-tests / e2e tests (k8s-plus-one, stable)	22m 33s
	3h 2m 54s

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