typo3 docker : upgrade apcu

docker/typo3/Dockerfile

@@ -16,7 +16,7 @@ WORKDIR /var/www/typo3
 RUN \
     # Install utilities and php extensions
     apt-get clean && apt-get update && apt-get install -y locales; \
-    pecl install apcu-5.1.17 && pecl install apcu_bc && pecl install imagick-3.4.3RC2; \
+    pecl install apcu-5.1.23 && pecl install apcu_bc && pecl install imagick-3.4.3RC2; \
     apt-get install -y --no-install-recommends zip unzip git nano wget less \
                                                libxml2-dev libpq-dev libzip-dev zlib1g-dev libonig-dev \
                                                libfreetype6-dev libpng-dev libjpeg-dev libicu-dev libwebp-dev \

docker/typo3/conf/apc.ini

@@ -1,3 +1,2 @@
 extension=apcu.so
-extension=apc.so
 apc.enable_cli=1