Use pyproject.toml to specify build requirements

[ksivaman]

Description

setup_requires is deprecated (pep ref) and will be removed in setuptools v75.0.0. This PR uses the newer pyproject.toml to specify build time dependencies. We can consider gradually moving over other functionality to pyproject.toml as required.

Type of change

• [ ] Documentation change (change only to the documentation, either a fix or a new content)
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] Infra/Build change
• [ ] Code refractor

Changes

Please list the changes introduced in this PR:

• Change A
• Change B

Checklist:

• [x] I have read and followed the contributing guidelines
• [x] The functionality is complete
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes

[ksivaman]

/te-ci