[3.11] gh-103872: Update bundled pip version to 23.1.2 (gh-103874)

[3.11] gh-103872: Update bundled pip version to 23.1.2 (gh-103874)

closes: #103872
xref: https://github.com/pypa/pip/pull/12000

<!-- gh-issue-number: gh-103872 -->
* Issue: gh-103872 <!-- /gh-issue-number -->

---------

Co-authored-by: blurb-it[bot]
<43283697+blurb-it[bot]@users.noreply.github.com>
(cherry picked from commit 438b811761da124b949265d233f9fd9a74d7dd3f)

<!--
Thanks for your contribution!
Please read this comment in its entirety. It's quite important.

# Pull Request title

It should be in the following format:

```
gh-NNNNN: Summary of the changes made
```

Where: gh-NNNNN refers to the GitHub issue number.

Most PRs will require an issue number. Trivial changes, like fixing a
typo, do not need an issue.

# Backport Pull Request title

If this is a backport PR (PR made against branches other than `main`),
please ensure that the PR title is in the following format:

```
[X.Y] <title from the original PR> (GH-NNNN)
```

Where: [X.Y] is the branch name, e.g. [3.6].

GH-NNNN refers to the PR number from `main`.

-->