make test_time_limit even more loose (#451)

Summary:
Pull Request resolved: #451

Sometimes test_time_limit will fail on very fast devices (https://github.com/facebookresearch/aepsych/actions/runs/11827946255/attempts/1).

We make this test even more loose and add extra logging to help debug in future.

Reviewed By: crasanders

Differential Revision: D65923982

fbshipit-source-id: 49751b6140f899a4ff9837ba05f41724aa6b2503

Author: JasonKChow

tests/generators/test_optimize_acqf_generator.py

@@ -62,7 +62,9 @@ def test_time_limits(self):
         short = end - start
 
         # very loose test because fit time is only approximately computed
-        self.assertTrue(long > short)
+        # on very fast machines, short sometimes actually wins, but hopefully not by
+        # much
+        self.assertTrue(long - short > -0.05, f"Long time: {long}, short time: {short}")
 
     def test_instantiate_eubo(self):
         config = """