update Dockerfile

Dockerfile

@@ -6,7 +6,7 @@ WORKDIR /app
 RUN npm install && npm run build
 
 ARG EXPRESS_REPO
-FROM ${EXPRESS_REPO} as runner
+FROM ${EXPRESS_REPO}
 
 COPY --from=build /app/dist /app/public
 RUN sed -i 's/next(createError(404));/res.status(404).sendFile(path.join(__dirname, "public", "index.html"));/' /app/app.js