Add Python 3.13 as supported

[woodsp-ibm]

Summary

Add support for Python 3.13

Details and comments

At present I expect this to failed in the same way qiskit-community/qiskit-machine-learning#836 is currently in this equivalent test here that was copied to "test.optimizers.test_gradient_descent.TestGradientDescent.test_start" when it tests a couple of dataclass equalities. I have a fix that works for me locally, see this comment in the above PR qiskit-community/qiskit-machine-learning#836 (comment) but I just wanted to see it failing in CI too before applying it just to make sure.

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Will need branch rules updating for this change once its ok/approved.

[woodsp-ibm]

Indeed it fails under 3.13 in CI as expected as below

test.optimizers.test_gradient_descent.TestGradientDescent.test_start
--------------------------------------------------------------------

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):

      File "/Users/runner/work/qiskit-algorithms/qiskit-algorithms/test/optimizers/test_gradient_descent.py", line 135, in test_start
    self.assertEqual(test_state, optimizer.state)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

      File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/unittest/case.py", line 907, in assertEqual
    assertion_func(first, second, msg=msg)
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^

      File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/unittest/case.py", line 897, in _baseAssertEqual
    if not first == second:
           ^^^^^^^^^^^^^^^

      File "<string>", line 18, in __eq__

    ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

Will add the fixes, which is basically custom eq methods, rather than the autogenerated ones, on the dataclasses in question

[coveralls]

Pull Request Test Coverage Report for Build 13902685239

Details

• 4 of 4 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.003%) to 90.477%

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Totals
Change from base Build 13900902629:	0.003%
Covered Lines:	6394
Relevant Lines:	7067

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💛 - Coveralls

[ElePT]

LGTM

[woodsp-ibm]

Thx, I updated the branch rules for this 3.13 change.