[MM-23882] Include database server version in telemetry (#14258)

* Add database server version to telemetry

Also added a new query in the store to retrieve the database version

* Add test for the GetDbVersion function

* More drivers in the tests

Co-authored-by: mattermod <mattermod@users.noreply.github.com>

store/sqlstore/store.go

@@ -45,6 +45,7 @@ type SqlStore interface {
 	GetMaster() *gorp.DbMap
 	GetSearchReplica() *gorp.DbMap
 	GetReplica() *gorp.DbMap
+	GetDbVersion() (string, error)
 	TotalMasterDbConnections() int
 	TotalReadDbConnections() int
 	TotalSearchDbConnections() int