pex 2.12.0

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2.12.0

This release adds support for passing --site-packages-copies to both
pex3 venv create ... and PEX_TOOLS=1 ./my.pex venv .... This is
similar to pex --venv --venv-site-packages-copies ... except that
instead of preferring hard links, a copy is always performed. This is
useful to disassociate venvs you create using Pex from Pex's underlying
PEX_ROOT cache.

This release also adds partial support for statically linked CPython. If
the statically linked CPython is <3.12, the default Pip (
--pip-version vendored) used by Pex will work. All newer Pips will not
though, until Pip 24.2 is released with the fix in
pypa/pip#12716 and Pex releases with support for
--pip-version 24.2.

• Add --site-packages-copies for external venvs. (#2470)
• Support statically linked CPython. (#2472)