chore: matrix build (#106)

* chore: matrix build

* chore: test goos goarch

* fix: artifact path

* chore: new download version

* artifact paths

build/docker/prod

@@ -1,18 +1,15 @@
-#
+# This Stage prepares the user in the container and copies the files
 FROM alpine:latest as prepare
 RUN adduser -D zitadel
-COPY .build/go/zitadel /
+COPY .artifacts/zitadel-linux-amd64 /zitadel
 COPY cmd/zitadel/*.yaml /
 RUN chmod a+x /zitadel
 
-#
+# This Stage is intended as production image
 FROM scratch as final
 COPY --from=prepare /etc/passwd /etc/passwd
 COPY --from=prepare / /
-
 USER zitadel
-
 HEALTHCHECK NONE
-
 ENTRYPOINT ["/zitadel"]
 ## TODO enable CMD