liftinstall: Reorder packages and use yuzu user

Also targets debian:buster instead of the ambiguous stable version.

linux-liftinstall/Dockerfile

@@ -1,22 +1,24 @@
-FROM debian:stable
+FROM debian:buster
-MAINTAINER yuzu
+LABEL maintainer="yuzu"
 
 # Create a user account yuzu (UID 1027) that the container will run as
-RUN apt-get update && apt-get -y full-upgrade && \
+RUN useradd -m -u 1027 -s /bin/bash yuzu && \
+    apt-get update && apt-get -y full-upgrade && \
     apt-get install --no-install-recommends -y \
+    apt-utils \
     ca-certificates \
+    cargo \
     curl \
     gnupg \
-    apt-utils && \
+    libssl-dev \
+    libwebkit2gtk-4.0-dev \
+    nodejs && \
     curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg -o /tmp/pubkey.gpg && \
     apt-key add /tmp/pubkey.gpg && \
     echo "deb https://dl.yarnpkg.com/debian/ stable main" > /etc/apt/sources.list.d/yarn.list && \
     apt-get update && apt-get install --no-install-recommends -y \
-    libwebkit2gtk-4.0-dev \
-    libssl-dev \
-    cargo \
-    nodejs \
     yarn && \
     apt-get clean autoclean && \
     apt-get autoremove --yes && \
     rm -rf /var/lib/apt /var/lib/dpkg /var/lib/cache /var/lib/log
+USER 1027