also install libldap-common to get a valid /etc/ldap/ldap.conf file (#1586)
also install libldap-common to get a valid /etc/ldap/ldap.conf file (#1586)

related to https://github.com/nextcloud/docker/issues/1572

Signed-off-by: Sebastian BERTHOLD <f7d8fbd43cda14771b013f2d11a1c0143504e6d2@users.noreply.github.com>
pebcac/docker,pebcac/docker