Support new PEP 600 tagging for Python wheels

[s0l0ist]

Description

Previously, we built wheels using manylinux2014 which was causing compatibility issues on older OSes using different glibc versions. This PR addresses the compatibility issues by using the newer PEP 600 convention where manylinux_x_y represents the supported versions of glibc.

We update the CD workflow to publish from Ubuntu 20.04 to build the appropriate wheel with the new naming convention.

Affected Dependencies

• Python and pip version support have changed to align with PEP 600 . python 3.8.10+, 3.9.5+, 3.10.0+ and pip >= 20.3.

How has this been tested?

• Describe the tests that you ran to verify your changes.
• Provide instructions so we can reproduce.
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CI passes, tested changes on the test PyPi domain and installed on an Ubuntu 20.04 VM.

Checklist

• I have followed the Contribution Guidelines and Code of Conduct
• I have commented my code following the OpenMined Styleguide
• I have labeled this PR with the relevant Type labels
• My changes are covered by tests