fix(deps): update dependency pygithub to v2

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

pyproject.toml

@@ -40,7 +40,7 @@ dependencies = [
     "prometheus-client~=0.8",
     "psycopg2-binary~=2.9",
     "pydantic~=2.12.3",
-    "PyGithub>=1.58,<1.59",
+    "PyGithub>=2.8,<2.9",
     "pyjwt~=2.7",
     "pyOpenSSL~=23.0",
     "pypd>=1.1.0,<1.2.0",