Bugfix: ctrl_decomp_zyz - isclose => allclose

[vincentmr]

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---

Context:
While introducing C(Rot) in Lightning, the test below failed in ctrl_decomp_zyz because all the qml.math.isclose branches raise errors with gradient tracers.

import pennylane as qml
import pennylane.numpy as np

np.random.seed(1337)

dev = qml.device("default.qubit", wires=3)
target_wires = [2]
control_wires = [0, 1]
control_values = [True, True]
def circuit(p):
    qml.ctrl(
        qml.Rot(*p, wires=target_wires),
        control_wires,
        control_values=control_values,
    )
    return np.array([qml.expval(qml.PauliY(i)) for i in range(3)])

circ_ad = qml.QNode(circuit, dev, diff_method="adjoint")
par = np.array([0.1234, -np.pi / 7, 0.5678])
jac_ad = np.array(qml.jacobian(circ_ad)(par))

Description of the Change:
Change isclose by allclose as suggested by @albi3ro .

Benefits:

Possible Drawbacks:

Related GitHub Issues:

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3216650) 99.68% compared to head (d9e1735) 99.68%.
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5198      +/-   ##
==========================================
- Coverage   99.68%   99.68%   -0.01%     
==========================================
  Files         396      396              
  Lines       36661    36378     -283     
==========================================
- Hits        36547    36262     -285     
- Misses        114      116       +2     

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[vincentmr]

Rot decomposition isclose allclose [sc-56743]

[albi3ro]

Mind adding some tests?

[vincentmr]

Mind adding some tests?

No, some functional test like the example above would be good?

[vincentmr]

@albi3ro I limited the changes to ctrl_decomp_zyz since the other functions are said to be non-autodifferentiable.