Update Dockerfile

Dockerfile

@@ -47,6 +47,7 @@ RUN chmod +x $HOME/alist/tvbox
 # Create a startup script that runs Alist and Aria2
 RUN echo '#!/bin/bash\n\
 aria2c --enable-rpc --rpc-listen-all --rpc-allow-origin-all --rpc-listen-port=6800 --daemon\n\
+rm -rf /var/lib/apt/lists/* \n\
 /home/user/alist/tvbox server --data /home/user/alist/data/ ' > $HOME/alist/start.sh && \
     chmod +x $HOME/alist/start.sh