Avoid a construct deprecated in NumPy 2

The NumPy 2 Migration Guide [explicitly recommends
changing](https://numpy.org/doc/stable/numpy_2_0_migration_guide.html#adapting-to-changes-in-the-copy-keyword)
constructs of the form

```python
np.array(state, copy=False)
```

to

```python
np.asarray(state)
```

Author: mhucka

cirq-core/cirq/qis/states.py

@@ -264,7 +264,7 @@ def quantum_state(
             dtype = DEFAULT_COMPLEX_DTYPE
         data = one_hot(index=state, shape=(dim,), dtype=dtype)
     else:
-        data = np.array(state, copy=False)
+        data = np.asarray(state)
         if qid_shape is None:
             qid_shape = infer_qid_shape(state)
         if data.ndim == 1 and data.dtype.kind != 'c':