Update Dockerfile

Dockerfile

@@ -7,9 +7,7 @@ RUN cat /root/etc-tmp/pacman.conf >> /etc/pacman.conf
 RUN cat /root/etc-tmp/makepkg.conf >> /etc/makepkg.conf
 
 # install packages
-RUN pacman -Syu --noconfirm --overwrite '*'
-RUN rm -rf /var/cache/pacman/pkg/* && rm -rf /var/lib/pacman/*
-RUN pacman -S base-devel ttyd git pacman-contrib mold ccache yay pkgconf tree \
+RUN pacman -Syu base-devel ttyd git pacman-contrib mold ccache yay pkgconf tree \
     lrzsz libsixel lsix \
     cmake python-pip uv \
     ttf-maplemono-nf-unhinted fish fzf bat eza tldr zoxide starship \
@@ -17,7 +15,7 @@ RUN pacman -S base-devel ttyd git pacman-contrib mold ccache yay pkgconf tree \
     btop fastfetch \
     neovim ripgrep \
     --noconfirm --overwrite '*'
-RUN rm -rf /var/cache/pacman/pkg/* && rm -rf /var/lib/pacman/*
+RUN pacman -Scc --noconfirm --overwrite '*'
 
 # create non-root user
 RUN useradd -m -u 1000 -s /bin/fish ${USERNAME:-orion}