fix: remove frozen-lockfile for pnpm version compatibility

docker/Dockerfile.ui

@@ -5,7 +5,7 @@
 FROM node:18-alpine AS builder
 WORKDIR /app
 COPY forge-admin-ui/package.json forge-admin-ui/pnpm-lock.yaml ./
-RUN npm install -g pnpm@8 && pnpm install --frozen-lockfile
+RUN npm install -g pnpm@8 && pnpm install
 COPY forge-admin-ui/ .
 RUN pnpm build