fix: move user env to the beginning

oses/debian/Dockerfile

@@ -11,6 +11,8 @@ RUN          useradd -m -d /home/container -s /bin/bash container
 
 RUN          ln -s /home/container/ /nonexistent
 
+ENV         USER=container HOME=/home/container
+
 ## Update base packages
 RUN          apt update \
              && apt upgrade -y
@@ -24,10 +26,7 @@ RUN          apt install -y gcc g++ libgcc1 lib32gcc-s1 libc++-dev gdb libc6 git
 RUN          update-locale lang=en_US.UTF-8 \
              && dpkg-reconfigure --frontend noninteractive locales
 			 
-			 
 
-USER        container
-ENV         USER=container HOME=/home/container
 WORKDIR     /home/container
 
 COPY        ./entrypoint.sh /entrypoint.sh