Bump proxy-py from 2.4.4rc5 to 2.4.4

Bumps [proxy-py](https://github.com/abhinavsingh/proxy.py) from 2.4.4rc5 to 2.4.4.
- [Release notes](https://github.com/abhinavsingh/proxy.py/releases)
- [Changelog](https://github.com/abhinavsingh/proxy.py/blob/develop/CHANGELOG.md)
- [Commits](abhinavsingh/proxy.py@v2.4.4rc5...v2.4.4)

---
updated-dependencies:
- dependency-name: proxy-py
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements/constraints.txt

@@ -136,7 +136,7 @@ pluggy==1.4.0
     # via pytest
 pre-commit==3.5.0
     # via -r requirements/lint.in
-proxy-py==2.4.4rc5
+proxy-py==2.4.4
     # via -r requirements/test.in
 pycares==4.3.0
     # via aiodns

requirements/dev.txt

@@ -133,7 +133,7 @@ pluggy==1.4.0
     # via pytest
 pre-commit==3.5.0
     # via -r requirements/lint.in
-proxy-py==2.4.4rc5
+proxy-py==2.4.4
     # via -r requirements/test.in
 pycares==4.3.0
     # via aiodns

requirements/test.txt

@@ -63,7 +63,7 @@ packaging==23.1
     #   pytest
 pluggy==1.4.0
     # via pytest
-proxy-py==2.4.4rc5
+proxy-py==2.4.4
     # via -r requirements/test.in
 pycares==4.3.0
     # via aiodns