Merge #1307

1307: Update Roundcube to 1.4.2 r=hoellen a=hoellen

## What type of PR?
enhancement

## What does this PR do?
Update Roundcube to 1.4.2 (see [here](https://github.com/roundcube/roundcubemail/releases/tag/1.4.2))


Co-authored-by: hoellen <dev@hoellen.eu>

webmails/roundcube/Dockerfile

@@ -16,7 +16,7 @@ RUN apt-get update && apt-get install -y \
 # Shared layer between nginx, dovecot, postfix, postgresql, rspamd, unbound, rainloop, roundcube
 RUN pip3 install socrate
 
-ENV ROUNDCUBE_URL https://github.com/roundcube/roundcubemail/releases/download/1.4.1/roundcubemail-1.4.1-complete.tar.gz
+ENV ROUNDCUBE_URL https://github.com/roundcube/roundcubemail/releases/download/1.4.2/roundcubemail-1.4.2-complete.tar.gz
 
 RUN apt-get update && apt-get install -y \
       zlib1g-dev libzip4 libzip-dev \