PostgreSQL with scram-sha-256 authentication?

Is it possible to configure RT to authenticate to a PostgreSQL database that uses scram-sha-256 authentication, or is RT limited to the older MD5 hash?

If it’s possible, what’s necessary to make it work?

RT will eventually use the DBD::Pg Perl module, which in turn uses the libpq5 client library from PostgreSQL. I would think that as long as libpq5 is new enough, then it’d just work.