tests: GithubException now accepts also headers

We need to update how we mock GithubException since 1.55 it now accepts
HTTP headers in form of a positional argument as well:

PyGithub/PyGithub#1887

Kudos @lbarcziova

Signed-off-by: Tomas Tomecek <ttomecek@redhat.com>

tests/unit/test_reporting.py

@@ -170,7 +170,7 @@ def test_set_status_gitlab(
             "We made it!",
             "packit/pr-rpm-build",
             "https://api.packit.dev/build/111/logs",
-            (github.GithubException, (None, None), dict()),
+            (github.GithubException, (None, None, None), dict()),
             id="GitHub PR",
         ),
         pytest.param(