### Godot version

Godot 4.0 statble

### System information

Windows 10

### Issue description

TextEdit boundary wrapmode not works, it only removes the horizontal scrollbar

### Steps to reproduce

Add a textedit in editor, set  the wrap mode to boundary, type something.

### Minimal reproduction project

![image](https://user-images.githubusercontent.com/9168814/224538077-2efb4e67-8976-496e-9223-c460365ecc28.png)
![image](https://user-images.githubusercontent.com/9168814/224538084-af773b86-d73a-4e8b-9b66-a0fb4bde1168.png)

SIGNAL_CHECK("lines_edited_from", lines_edited_args);
			text_edit->set_caret_line(1);
			text_edit->set_caret_column(4);
			text_edit->set_caret_line(3, false, true, 0, 1);
			text_edit->set_caret_column(4, false, 1);
			MessageQueue::get_singleton()->flush();
			SIGNAL_DISCARD("caret_changed");
			text_edit->set_editable(false);
			SEND_GUI_ACTION("ui_text_newline_above");
			CHECK(text_edit->get_viewport()->is_input_handled());
			CHECK(text_edit->get_text() == "\nthis is some test text.\n\nthis is some test text.");
			CHECK(text_edit->get_caret_line() == 1);
			CHECK(text_edit->get_caret_column() == 4);
			CHECK_FALSE(text_edit->has_selection(0));
			CHECK(text_edit->get_caret_line(1) == 3);
			CHECK(text_edit->get_caret_column(1) == 4);
			CHECK_FALSE(text_edit->has_selection(1));
			SIGNAL_CHECK_FALSE("caret_changed");
			SIGNAL_CHECK_FALSE("text_changed");
			SIGNAL_CHECK_FALSE("lines_edited_from");
			text_edit->set_editable(true);
			((Array)lines_edited_args[0])[0] = 2;
			((Array)lines_edited_args[0])[1] = 3;
			SEND_GUI_ACTION("ui_text_newline_above");
			CHECK(text_edit->get_viewport()->is_input_handled());
			CHECK(text_edit->get_text() == "\n\nthis is some test text.\n\n\nthis is some test text.");
			CHECK(text_edit->get_caret_line() == 1);
			CHECK(text_edit->get_caret_column() == 0);
			CHECK_FALSE(text_edit->has_selection(0));
			CHECK(text_edit->get_caret_line(1) == 4);