fix: pnpm

Dockerfile

@@ -93,8 +93,7 @@ done
 RUN rye toolchain register /usr/bin/python \
     && rye toolchain register /usr/bin/pypy
 
-RUN fish -c 'SHELL=/usr/bin/fish pnpm setup' \
-    && fish -c 'SHELL=/usr/bin/fish pnpm self-update'
+RUN fish -c 'SHELL=/usr/bin/fish pnpm setup'
 
 RUN mkdir -p /home/mzwing/.config/code-server/ \
     && touch /home/mzwing/.config/code-server/config.yaml \