perf: user grant owner removed (#6962)

* fix: change logic for usergrants projection with no selects

* fix: change logic for usergrants projection with one select

* fix: move resource owner select to single function

* fix: move resource owner select to single function

* fix: changes after merge

* fix: changes after merge

---------

Co-authored-by: Tim Möhlmann <tim+github@zitadel.com>

internal/query/projection/project_grant_member_test.go

@@ -56,9 +56,6 @@ func TestProjectGrantMemberProjection_reduces(t *testing.T) {
 							"email1",
 							true,
 						),
-					},
-				).appendFilterResponse(
-					[]eventstore.Event{
 						project.NewGrantAddedEvent(context.Background(),
 							&project.NewAggregate("project1", "org2").Aggregate,
 							"grant", "org3", []string{},