chore(controller): modify alpinelinux repositories

Author: lijianguo

rootfs/Dockerfile.test

@@ -7,7 +7,7 @@ ENV PGDATA /var/lib/postgresql/12
 
 ENV PATH="/app/.venv/bin:${PATH}"
 
-RUN echo https://dl-cdn.alpinelinux.org/alpine/edge/testing >>/etc/apk/repositories \
+RUN echo https://dl-cdn.alpinelinux.org/alpine/edge/main >>/etc/apk/repositories \
   && apk add --update --virtual .build-deps \
     gcc \
     rust \