MDEV-18337 Upgrade to 10.4 fails on some Ubuntu's due to dialog.so conflict

Restore changes from 10d347d that were lost in a merge

Author: vuvova

debian/control

@@ -53,6 +53,8 @@ Conflicts: libmariadbclient18 (<< 10.2.0),
            mariadb-server-5.2,
            mariadb-server-5.3,
            mariadb-server-5.5 (<< 5.5.33)
+Breaks: libmariadbclient18 (<< ${source:Version})
+Replaces: libmariadbclient18 (<< ${source:Version})
 Description: MariaDB database client library
  MariaDB is a fast, stable and true multi-user, multi-threaded SQL database
  server. SQL (Structured Query Language) is the most popular database query