[CI] Build and push deepflow server builder images

[crazytaxii]

This PR is for:

• CI

Provide the server builder image on public registry

Add a new Dockerfile with 2 steps for building server image easily:

$ cat <<EOF > ./server/Dockerfile.ci
FROM deepflowce/deepflow-server-builder:latest AS builder

COPY . /go/deepflow

WORKDIR /go/deepflow/server

RUN make libs/geo/ip_info.go
RUN CGO_ENABLED=0 make server

FROM alpine:latest

RUN apk update && \
    apk upgrade && \
    apk add tzdata

COPY ./server/server.yaml /etc/
RUN mkdir /etc/mysql
COPY ./server/controller/db/mysql/migration/rawsql /etc/mysql
COPY ./server/controller/cloud/filereader/manual_data_samples.yaml /etc/
COPY ./server/querier/db_descriptions /etc/db_descriptions/

COPY --from=builder /go/deepflow/server/bin/deepflow-server /bin/deepflow-server

CMD /bin/deepflow-server
EOF
$ docker build -t deepflowce/deepflow-server:dev -f ./server/Dockerfile.ci .

[Nick-0314]

@crazytaxii This image should not need to be built every time.You can set it to be built only when files change
这个镜像应该不需要每次都build，可以设置为在文件有改动的时候再build这个镜像

[Nick-0314]

tag应该相对固定，builder镜像不适合每次build的tag都更新，应该有一个好记的tag，比如每次改动这个dockerfile时+1

[crazytaxii]

感觉 latest 就够了

[Nick-0314]

不同的分支，可能还需要不同的tag

[Nick-0314]

用 ${{ env.IMAGE_TAG_PREFIX }} 这个变量应该就可以了