PLT-8184 Fixing LDAP test connection button for master (#7888)

app/ldap.go

@@ -25,7 +25,7 @@ func (a *App) SyncLdap() {
 }
 
 func (a *App) TestLdap() *model.AppError {
-	if ldapI := a.Ldap; ldapI != nil && utils.IsLicensed() && *utils.License().Features.LDAP && *a.Config().LdapSettings.Enable {
+	if ldapI := a.Ldap; ldapI != nil && utils.IsLicensed() && *utils.License().Features.LDAP && (*a.Config().LdapSettings.Enable || *a.Config().LdapSettings.EnableSync) {
 		if err := ldapI.RunTest(); err != nil {
 			err.StatusCode = 500
 			return err