LayoutInstance.query_layout_obj_instances throws error when single point is queried

### 🔍 Before submitting the issue

- [x] I have searched among the existing issues
- [x] I am using a Python virtual environment

### 🐞 Description of the bug

LayoutInstance.query_layout_obj_instances throws error when single point is queried

### 📝 Steps to reproduce

Call LayoutInstance.query_layout_obj_instances and pass a single PointData object as the spatial filter

### 💻 Which operating system are you using?

Windows

### 📀 Which ANSYS version are you using?

N/A

### 🐍 Which Python version are you using?

3.10

### 📦 Installed packages

```shell
N/A
```