build in CI, not in docker

Dockerfile

@@ -1,9 +1,3 @@
-FROM golang:1.26
-WORKDIR /src
-COPY . ./
-RUN CGO_ENABLED=0 GOOS=linux go build -o server ./cmd/serve
-
-FROM scratch
-COPY --from=0 /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=0 /src/server ./
+FROM scratch 
+COPY server ./
 CMD ["/server"]