Update pip requirement from <23.2,>=21.0 to >=21.0,<23.4

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...23.3.2)

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

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

requirements.txt

@@ -1,4 +1,4 @@
 colorlog==6.7.0
 homeassistant==2023.8.0
-pip>=21.0,<23.2
+pip>=21.0,<23.4
 ruff==0.0.292