.github/workflows - skip arm64 builds for now #6

Job	Run time
Build vigil-amd64	26s
Build workspace-amd64	26s
Build genesis-amd64	25s
Build supervisor-amd64	28s
Build apiserver-amd64	22s
Build portal-amd64	30s
Build rscserver-amd64	28s
Build nocturne-amd64	27s
Create manifest for ${{ matrix.component }}	0s
	3m 32s

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