fix #1741 docker build was not working

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:2.7-alpine
+FROM ruby:3.2-alpine
 
 WORKDIR /app
 ADD _config.yml /app/
@@ -9,8 +9,8 @@ ADD package.json /app/
 ADD pnpm-lock.yaml /app/
 ADD gulpfile.js /app/
 
-RUN apk add --virtual build-dependencies build-base
-RUN apk add npm --repository=http://dl-cdn.alpinelinux.org/alpine/edge/community/
+RUN apk add --virtual build-dependencies build-base npm
+RUN apk upgrade
 RUN npm i -g pnpm
 RUN pnpm install
 RUN bundle config --global silence_root_warning 1 && bundler install --verbose