move to v1.4.8 of authLDAP as it contains the group separator fix

Dockerfile

@@ -15,7 +15,7 @@ RUN curl -L -o /app/code/wp https://github.com/wp-cli/wp-cli/releases/download/v
 RUN chmod +x /app/code/wp
 
 # Get the plugins
-RUN curl -L -o /app/code/authLdap.zip https://github.com/cloudron-io/authLdap/archive/c61dd00e49463ebd629d364ec894ae1e09ae4a15.zip
+RUN curl -L -o /app/code/authLdap.zip https://github.com/heiglandreas/authLdap/archive/1.4.18.zip
 RUN curl -L -o /app/code/disable-wordpress-updates.zip https://downloads.wordpress.org/plugin/disable-wordpress-updates.1.4.7.zip
 RUN curl -L -o /app/code/wp-mail-smtp.zip https://downloads.wordpress.org/plugin/wp-mail-smtp.0.9.5.zip