MM-28548: Change default data source to postgres (#15553)

* MM-28548: Change default data source to postgres

We now move to start using postgres as our default database.

* Add connect_timeout

* Trigger CI

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

model/config.go

@@ -107,7 +107,7 @@ const (
 	TEAM_SETTINGS_DEFAULT_CUSTOM_DESCRIPTION_TEXT  = ""
 	TEAM_SETTINGS_DEFAULT_USER_STATUS_AWAY_TIMEOUT = 300
 
-	SQL_SETTINGS_DEFAULT_DATA_SOURCE = "mmuser:mostest@tcp(localhost:3306)/mattermost_test?charset=utf8mb4,utf8&readTimeout=30s&writeTimeout=30s"
+	SQL_SETTINGS_DEFAULT_DATA_SOURCE = "postgres://mmuser:mostest@localhost/mattermost_test?sslmode=disable&connect_timeout=10"
 
 	FILE_SETTINGS_DEFAULT_DIRECTORY = "./data/"
 
@@ -1033,7 +1033,7 @@ type SqlSettings struct {
 
 func (s *SqlSettings) SetDefaults(isUpdate bool) {
 	if s.DriverName == nil {
-		s.DriverName = NewString(DATABASE_DRIVER_MYSQL)
+		s.DriverName = NewString(DATABASE_DRIVER_POSTGRES)
 	}
 
 	if s.DataSource == nil {