When using v3.12, I get the error below. It used to work before 3.12. I already tried adding php7-int however I'm still getting the error.

 Step 11/29 : RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
  ---> Running in 142c59b79830
 PHP Warning:  PHP Startup: Unable to load dynamic library 'intl.so' (tried: /usr/local/lib/php/extensions/no-debug-non-zts-20170718/intl.so (Error loading shared library libicuio.so.62: No such file or directory (needed by /usr/local/lib/php/extensions/no-debug-non-zts-20170718/intl.so)), /usr/local/lib/php/extensions/no-debug-non-zts-20170718/intl.so.so (Error loading shared library /usr/local/lib/php/extensions/no-debug-non-zts-20170718/intl.so.so: No such file or directory)) in Unknown on line 0

I have this in Dockerfile

RUN apk --no-cache update \
    && apk --no-cache upgrade \
    && apk add --no-cache \
            mysql-client \
            php7-mysqli \
            php7-pdo \
            php7-intl \
            freetype \
            libpng \
            freetype-dev \
            libpng-dev \
            jpeg-dev \
            libjpeg \
            libjpeg-turbo-dev \
            wget \
            python3 \
            py3-pip \
            zlib-dev \
            ttf-freefont \
            fontconfig \
            xvfb \
            libxrender-dev \
            gettext \
            gettext-dev \
            libxml2-dev \
            autoconf \
            g++ \
            git \
            bash \
            make \
            libstdc++ \
            libx11 \
            libxrender \
            libxext \
            libssl1.1 \
            ca-certificates \
            imagemagick imagemagick-dev && \
    apk del --purge autoconf g++ make

Any suggestions to fix this?

Thanks