Changed docker group back to 991

rider2.dockerfile

@@ -68,7 +68,7 @@ RUN wget https://download.docker.com/linux/static/stable/x86_64/docker-24.0.2.tg
 RUN     apt-get clean && \
         apt-get -y remove && \
 	echo 'paul ALL=(ALL) NOPASSWD:ALL' > /etc/sudoers.d/90-super && \
-	addgroup --system --gid 998 docker && \
+	addgroup --system --gid 991 docker && \
         usermod -p '$1$S6iYWiUc$f1XwbNXb/gYtfVzIcmcuc.' root && \
         useradd -ms /bin/bash paul && \
         echo 'paul:harry1996' | chpasswd && \