pex 2.1.145

[github-actions[bot]]

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2.1.145

This release broadens the range of the flit-core build system Pex uses
to include 3.x, which is known to work for modern Python versions and
Pex's existing build configuration.

• Raise the flit-core limit for Python 3 (Raise the flit-core limit for Python 3 #2229)

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This discussion was created from the release pex 2.1.145.