Fix pytest hookimpl parameter name to match hookspec

Rename _call to call in pytest_runtest_makereport hook to fix
PluginValidationError. Pytest requires hookimpl parameter names
to exactly match the hookspec.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: dmihalcik-virtru

xtest/fixtures/audit.py

@@ -265,7 +265,7 @@ def test_without_logs():
 
 @pytest.hookimpl(tryfirst=True, hookwrapper=True)
 def pytest_runtest_makereport(
-    item: pytest.Item, _call: pytest.CallInfo[None]
+    item: pytest.Item, call: pytest.CallInfo[None]
 ) -> Generator[None, pytest.TestReport, pytest.TestReport]:
     """Pytest hook to capture test results for audit log collection.