### Godot version

4.2 Stable

### System information

Linux

### Issue description

Calling TreeItem set_text() on a TreeItem that was removed via remove_child() causes debugging to end and the application to close without any error message.

### Steps to reproduce

Run the included example to get the debugger to crash. Comment out "treeItem.remove_child(subTreeItem)" for normal behaviour. 

### Minimal reproduction project

[treeItemCrash.zip](https://github.com/godotengine/godot/files/13534005/treeItemCrash.zip)

TreeItem *prev_item = this->_get_prev_in_tree(p_wrap, true);
	return prev_item;
}
TreeItem *TreeItem::get_next_in_tree(bool p_wrap) {
	TreeItem *next_item = this->_get_next_in_tree(p_wrap, true);
	return next_item;
}
TreeItem *TreeItem::get_child(int p_index) {
	_create_children_cache();
	if (p_index < 0) {
		p_index += children_cache.size();
	}
	ERR_FAIL_INDEX_V(p_index, children_cache.size(), nullptr);
	return children_cache.get(p_index);
}
int TreeItem::get_visible_child_count() {
	_create_children_cache();
	int visible_count = 0;
	for (int i = 0; i < children_cache.size(); i++) {
		if (children_cache[i]->is_visible()) {
			visible_count += 1;
		}
	}
	return visible_count;
}
int TreeItem::get_child_count() {
	_create_children_cache();
	return children_cache.size();
}
TypedArray<TreeItem> TreeItem::get_children() {