Update Dockerfile

.hadolint.yaml

 ignored:
+  - DL3007
   - DL3008
   - DL3018

Dockerfile

-FROM registry.cyberbrain.pw/docker/alpine:latest
+ARG DOCKER_REGISTRY=registry.cyberbrain.pw
+FROM $DOCKER_REGISTRY/tools/docker/git:latest
 
 WORKDIR /tmp/openwrt
 
 ENTRYPOINT [ "sh", "/entrypoint.sh" ]
 
 RUN set -ex && \
-    apk --no-cache add sudo git rsync openssh-client && \
+    apk --no-cache add sudo rsync && \
     rm -rf /var/cache/apk/* && \
     addgroup -S openwrt && \
     adduser -S openwrt -G openwrt -h /home/openwrt && \