The getShardVersion command exposed by the MongoS can be used to get the cached version of a given database. Nevertheless, in the context of the MongoS interface parity initiative, starting from version 7.1, the MongoS also exposes the getDatabaseVersion command (SERVER-80417).

The goal of this ticket is to get rid of tests of the use of the getShardVersion command and rely only on getDatabaseVersion to get the cached database version from both MongoS and MongoD (interface parity).

This can be implemented once version 8.0 becomes the last LTS.