Use slightly more sophisticated Dockerfile

Dockerfile

@@ -1,3 +1,8 @@
+FROM debian:latest AS builder
+
+RUN cat /etc/issue
+
+
 FROM scratch
 
 ARG GIT_COMMIT=
@@ -7,4 +12,6 @@ LABEL \
     org.opencontainers.image.source=https://gitea.zom.bi/images/hello-world.git \
     org.opencontainers.image.revision=$GIT_COMMIT
 
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+
 ENV HELLO=world