feat: reduce compile gotrue image size

docker/gotrue.Dockerfile

@@ -1,6 +1,19 @@
-FROM golang
+FROM golang as base
 WORKDIR /go/src/supabase
 RUN git clone https://github.com/supabase/gotrue.git
 WORKDIR /go/src/supabase/gotrue
-RUN git checkout e67a10c1 && go install
-CMD ["gotrue"]
+RUN git checkout e67a10c1 && \
+	CGO_ENABLED=0 \
+	GOOS=linux \
+	GOARCH=amd64 \
+	go build -o /gotrue .
+
+FROM scratch
+COPY --from=base /usr/share/zoneinfo /usr/share/zoneinfo
+COPY --from=base /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=base /etc/passwd /etc/passwd
+COPY --from=base /etc/group /etc/group
+
+COPY --from=base /gotrue .
+
+CMD ["./gotrue"]