bind: Has a configuration file prompt when upgrading to trixie

From !2650 (comment 603869).

I saw a similar issue when Bind was installed. But with this change, we will lose our configuration for bind.

Old file:

root@freedombox:/etc/bind# cat named.conf.options.dpkg-old 

acl goodclients {
    localnets;
};
options {
listen-on { !10.42.0.1; !10.42.1.1; !10.42.2.1; !10.42.3.1; !10.42.4.1; !10.42.5.1; !10.42.6.1; !10.42.7.1; any; };
directory "/var/cache/bind";

recursion yes;
allow-query { goodclients; };

forwarders {
127.0.0.53;
};
forward first;

auth-nxdomain no;    # conform to RFC1035
listen-on-v6 { any; };
};

New file:

root@freedombox:/etc/bind# cat named.conf.options
options {
	directory "/var/cache/bind";
};

Should we add bind9 to PACKAGES_WITH_PROMPTS again?