Add proxy.py to project dependencies

Included proxy.py version 2.4.4 in the main dependencies to support proxy-related functionality.

Author: JR-1991

pyproject.toml

@@ -34,6 +34,7 @@ ipywidgets = "^8.1.1"
 pytest-cov = "^4.1.0"
 pytest-asyncio = "^0.23.3"
 pytest-httpx = "^0.35.0"
+"proxy.py" = "^2.4.4"
 
 [tool.poetry.group.linting.dependencies]
 codespell = "^2.2.6"