Merge pull request #12913 from jakkdl/dontfailonbadpath

[minor] avoid test failing if the working path contains the string 'error'

(cherry picked from commit ded1f44)

testing/python/fixtures.py

@@ -2996,7 +2996,7 @@ def test_finish():
             *3 passed*
         """
         )
-        result.stdout.no_fnmatch_line("*error*")
+        assert result.ret == 0
 
     def test_fixture_finalizer(self, pytester: Pytester) -> None:
         pytester.makeconftest(