Update pip requirement from <23.2,>=21.0 to >=21.0,<24.3

Updates the requirements on [pip](https://github.com/pypa/pip) to permit the latest version.
- [Changelog](https://github.com/pypa/pip/blob/main/NEWS.rst)
- [Commits](pypa/pip@21.0...24.2)

---
updated-dependencies:
- dependency-name: pip
  dependency-type: direct:production
...

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

requirements.txt

@@ -2,7 +2,7 @@ black==23.12.0
 colorlog==6.8.2
 flake8==6.1.0
 homeassistant==2023.6.0
-pip>=21.0,<23.2
+pip>=21.0,<24.3
 pre-commit==3.8.0
 reorder-python-imports==3.13.0
 ruff==0.5.5