Update fixtures.py

Author: Mionsz

tests/validation/tests/Engine/fixtures.py

@@ -96,3 +96,10 @@ def test_time(request):
     if test_time is None:
         return 30
     return int(test_time)
+
+@pytest.fixture(autouse=True)
+def delay_between_tests():
+    yield
+    print("Sleeping 5s between tests cases runs.")
+    time.sleep(5) 
+