build(deps): bump pygithub from 2.6.1 to 2.8.1 (#462)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -44,7 +44,7 @@ tests = [
     "black>=24.2.0",
     "click==8.2.1",
     "inflect==7.5.0",
-    "pygithub==2.6.1",
+    "pygithub==2.8.1",
     "lxml==5.3.0",
     "numpy==2.2.6",
     "parse==1.20.2",