Update Dockerfile

Dockerfile

@@ -39,7 +39,7 @@ RUN npm install -g n
 RUN n stable
 RUN curl -o- -L https://yarnpkg.com/install.sh | bash
 RUN export PATH="$HOME/.yarn/bin:$PATH"
-RUN yarn install
+RUN yarn install --ignore-engines
 RUN  yarn encore dev
 
 EXPOSE 8000/tcp