Add sudo to docker-builder image for commands cp and rm

This allows to copy/remove data in cache

Dockerfile.docker-builder

 FROM docker:20.10.21 AS docker-builder
 
-RUN apk add --no-cache bash git ca-certificates curl
-RUN adduser -D hived
+RUN apk add --no-cache bash git ca-certificates curl sudo
+RUN adduser -D hived && echo "hived ALL=(ALL) NOPASSWD:SETENV: /bin/cp,/bin/rm" >> /etc/sudoers
 USER hived
 WORKDIR /home/hived
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