Dist-upgrade

Signed-off-by: René Jochum <rene@jochum.dev>

Dockerfile

@@ -5,6 +5,7 @@ LABEL maintainer "René Jochum <rene@jochum.dev>"
 RUN set -ex; \
     sed -i 's/deb.debian.org/ftp.ch.debian.org/g' /etc/apt/sources.list && \
     apt-get update --allow-releaseinfo-change && \
+    apt-get dist-upgrade -y -o 'DPkg::Options::=--force-confold' -o 'DPkg::Options::=--force-confdef' && \
     apt-get install --no-install-recommends -y -o 'DPkg::Options::=--force-confold' -o 'DPkg::Options::=--force-confdef' gnupg apt-transport-https curl ca-certificates && \
     curl https://repo.dovecot.org/DOVECOT-REPO-GPG | gpg --import && \
     gpg --export ED409DA1 > /etc/apt/trusted.gpg.d/dovecot.gpg && \