Revert "Switch to npm"

This reverts commit ce5bf1edf0.

astro/Dockerfile

@@ -1,20 +1,20 @@
 FROM node:lts-alpine as base
 WORKDIR /base
 COPY ./package.json ./package.json
-RUN npm install
+RUN yarn install
 COPY ./ ./
 
 FROM base AS dev
 ENV NODE_ENV=development
 EXPOSE 3000
-CMD ["npm", "run", "dev"]
+CMD ["yarn","dev"]
 
 FROM base AS build
 ENV NODE_ENV=production
 WORKDIR /build
 COPY --from=base /base ./
 ADD "https://random-uuid.deno.dev" skipcache
-RUN npm run build
+RUN yarn build
 
 FROM nginx:stable AS prod
 COPY --from=build /build/dist /usr/share/nginx/html