Spit install into script and add step to install docker apt repo

rustup/Dockerfile

@@ -4,14 +4,8 @@ LABEL org.opencontainers.image.authors="matthew.pomes@pm.me"
 
 WORKDIR /root
 
-# common packages
-RUN apt-get update && \
-    apt-get install --no-install-recommends -y \
-    ca-certificates curl file \
-    build-essential musl-tools \
-    autoconf automake autotools-dev libtool xutils-dev \
-    docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin \
-    && rm -rf /var/lib/apt/lists/*
+COPY ./install-deps.sh .
+RUN bash ./install-deps.sh
 
 # ENV SSL_VERSION=1.0.2u