Minor: 3.13t default install doesn't pip

[dimaqq]

Bug report

Bug description:

macOS, installed 3.13.0b4 with the free-threading extra from python.org

> python3.13 -m pip

Usage:
  /Library/Frameworks/Python.framework/Versions/3.13/bin/python3.13 -m pip <command> [options]
...

> python3.13t -m pip
/usr/local/bin/python3.13t: No module named pip

can be trivially solved by python3.13t -m ensurepip

so, maybe not a big issue, though I wonder how come?

CPython versions tested on:

3.13

Operating systems tested on:

macOS

[ned-deily]

The need to manually install pip was a documented restriction of the initial releases of free-threading support with the python.org macOS installer. The imminent 3.13.0rc1 release will remove that restriction.