Update proxy-py requirement from ~=2.4.8 to ~=2.4.9

Updates the requirements on [proxy-py](https://github.com/abhinavsingh/proxy.py) to permit the latest version.
- [Release notes](https://github.com/abhinavsingh/proxy.py/releases)
- [Changelog](https://github.com/abhinavsingh/proxy.py/blob/develop/CHANGELOG.md)
- [Commits](abhinavsingh/proxy.py@v2.4.8...v2.4.9)

---
updated-dependencies:
- dependency-name: proxy-py
  dependency-type: direct:production
...

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

functest_requirements.txt

@@ -6,7 +6,7 @@ pytest<8
 pytest-custom_exit_code
 pytest-xdist
 python-gnupg
-proxy.py~=2.4.8
+proxy.py~=2.4.9
 trustme~=1.2.0
 
 # pulp_file tests