justify keyword arg in circuit draw does not raise on bad input

### Environment

- **Qiskit version**:  latest
- **Python version**: 
- **Operating system**: 


### What is happening?

`justify` will not raise on bogus inputs, e.g.

```python
qc.draw('mpl',justify='midldsfasdfse')
```

### How can we reproduce the issue?

Try above

### What should happen?

Bad inputs should raise rather than default implicitly

### Any suggestions?

_No response_