Update pip requirement from <23.3,>=21.0 to >=21.0,<23.4 (#53)

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)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1,6 +1,6 @@
 colorlog==6.7.0
 homeassistant>=2023.8.1
-pip>=21.0,<23.3
+pip>=21.0,<23.4
 ruff==0.0.292
 black==23.3.0
 orjson