Update dependency pygithub to v2.9.1 (#3020)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pyproject.toml

@@ -41,7 +41,7 @@ dependencies = [
     "ol-concourse>=0.5.8,<0.6",
     "ol-concoursepy==0.0.41",
     "psycopg2>=2.9.6,<3",
-    "pygithub==2.9.0",
+    "pygithub==2.9.1",
     "pypdf>=6.0.0,<7",
     "python-magic>=0.4.27,<0.5",
     "pyyaml>=6.0.1,<7",