Bump pip from 23.1.2 to 23.2

Bumps [pip](https://github.com/pypa/pip) from 23.1.2 to 23.2.
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@23.1.2...23.2)

---
updated-dependencies:
- dependency-name: pip
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements/pip.txt

@@ -1,3 +1,3 @@
 pip==19.3.1;python_version<="2.7"
 pip==21.3.1;python_version<="3.6" and python_version>"2.7"
-pip==23.1.2;python_version>="3.7"
+pip==23.2;python_version>="3.7"