Update NumPy APIs that will be removed in numpy-2.0 (quantumlib#6693)

Executed  ruff check --select NPY201 --fix ./

Incorporate fix from exported cirq sources, cl/658064952.

Ref: https://numpy.org/doc/stable/numpy_2_0_migration_guide.html

Author: pavoljuhas

cirq/contrib/quantum_volume/quantum_volume.py

@@ -147,7 +147,7 @@ def sample_heavy_set(
 
     results = results.agg(lambda meas: cirq.value.big_endian_bits_to_int(meas), axis=1)
     # Compute the number of outputs that are in the heavy set.
-    num_in_heavy_set = np.sum(np.in1d(results, heavy_set)).item()
+    num_in_heavy_set = np.sum(np.isin(results, heavy_set)).item()
 
     # Return the number of Heavy outputs over the number of valid runs.
     return num_in_heavy_set / len(results)

cirq/protocols/apply_unitary_protocol.py

@@ -390,7 +390,7 @@ def apply_unitary(
     # Try each strategy, stopping if one works.
     # Also catch downcasting warnings and throw an error: #2041
     with warnings.catch_warnings():
-        warnings.filterwarnings(action="error", category=np.ComplexWarning)
+        warnings.filterwarnings(action="error", category=np.exceptions.ComplexWarning)
         for strat in strats:
             result = strat(unitary_value, args)
             if result is None:

cirq/protocols/apply_unitary_protocol_test.py

@@ -714,7 +714,8 @@ def test_cast_to_complex():
     )
 
     with pytest.raises(
-        np.ComplexWarning, match='Casting complex values to real discards the imaginary part'
+        np.exceptions.ComplexWarning,
+        match='Casting complex values to real discards the imaginary part',
     ):
         cirq.apply_unitary(y0, args)