update wp-cli

Dockerfile

@@ -11,7 +11,7 @@ ADD wp-config.php.template /app/code/wp-config.php.template
 RUN mkdir -p /run/wordpress/sessions && \
     ln -sf /run/wordpress/wp-config.php /app/code/wp-config.php
 
-RUN curl -L -o /app/code/wp https://github.com/wp-cli/wp-cli/releases/download/v0.23.0/wp-cli-0.23.0.phar
+RUN curl -L -o /app/code/wp https://github.com/wp-cli/wp-cli/releases/download/v0.23.1/wp-cli-0.23.1.phar
 RUN chmod +x /app/code/wp
 
 # Get the plugins