Upgrade the bundled version of pip to 23.1.2

[pfmoore]

Feature or enhancement

This is the latest pip release.

Pitch

This ensures that users who install newest release of Python get the newest version of pip.

Linked PRs

• gh-103872: Update bundled pip version to 23.1.2 #103873
• [3.11] gh-103872: Update bundled pip version to 23.1.2 #103874