Update Dockerfile

Dockerfile

@@ -8,11 +8,11 @@ RUN apt-get update && apt-get install -y \
 RUN apt install gcc g++ gdb clangd wget -y
 RUN cd /usr/local/bin
 RUN wget -o /usr/local/bin/frpc https://nya.globalslb.net/natfrp/client/frpc/0.51.0-sakura-12.3/frpc_linux_amd64
-RUN wget -o /home/vscode-luogu.vsix https://github.com/yltx/vscode-luogu-developer/releases/download/v4.12.2/vscode-luogu.vsix
-RUN wget -o /home/cph-ng-0.5.5.vsix https://github.com/langningchen/cph-ng/releases/download/v0.5.5/cph-ng-0.5.5.vsix
 RUN chmod 755 /usr/local/bin/frpc
 RUN ls -l /usr/local/bin/frpc
 RUN md5sum /usr/local/bin/frpc
+COPY cph-ng-0.5.5.vsix /home/
+COPY vscode-luogu.vsix /home/
 RUN code-server --install-extension ms-ceintl.vscode-language-pack-zh-hans
 RUN code-server --install-extension /home/cph-ng-0.5.5.vsix
 RUN code-server --install-extension /home/vscode-luogu.vsix