Added Max Pool 3D to Paddle pooling.py

[kundakinte]

PR Description

Added Max Pool 3D to pooling.py and tests

Related Issue

Close #26523

Checklist

• Did you add a function?
• Did you add the tests?
• Did you run your tests and are your tests passing?
• Did pre-commit not fail on any check?
• Did you follow the steps we provided?

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[github-actions]

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Thank you for your Pull Request! We have run several checks on this pull request in order to make sure it's suitable for merging into this project. The results are listed in the following section.

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Linting Errors

• Found type "null", must be one of "feat","fix","docs","style","refactor","perf","test","build","ci","chore","revert"
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[github-actions]

Thank you for this PR, here is the CI results:

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Failed tests:

This PR introduces the following new failing tests:
ivy_tests/test_ivy/test_functional/test_experimental/test_core/test_elementwise.py::test_diff,paddle
ivy_tests/test_ivy/test_frontends/test_tensorflow/test_math.py::test_tensorflow_scalar_mul,numpy
ivy_tests/test_ivy/test_frontends/test_tensorflow/test_math.py::test_tensorflow_scalar_mul,jax
ivy_tests/test_ivy/test_frontends/test_tensorflow/test_math.py::test_tensorflow_scalar_mul,tensorflow
ivy_tests/test_ivy/test_frontends/test_tensorflow/test_math.py::test_tensorflow_scalar_mul,torch
ivy_tests/test_ivy/test_frontends/test_torch/test_tensor.py::test_torch_tensor_neg,jax
ivy_tests/test_ivy/test_frontends/test_torch/test_tensor.py::test_torch_tensor_neg,tensorflow
ivy_tests/test_ivy/test_frontends/test_torch/test_tensor.py::test_torch_tensor_neg,paddle

[kundakinte]

Hey @tomatillos, hope you're doing well, if you have time kindly review my pull request