Use version 5.4.1 of pytest

Sergey Vilgelm · Sergey Vilgelm · commit 69cb9de0a1ef · 2020-03-16T08:59:49.000-05:00
diff --git a/requirements/test.pip b/requirements/test.pip
@@ -2,7 +2,7 @@ blinker
 Faker==2.0.0
 mock==3.0.5
 pytest==4.6.5; python_version < '3.5'
-pytest==5.0.1; python_version >= '3.5'
+pytest==5.4.1; python_version >= '3.5'
 pytest-benchmark==3.2.2
 pytest-cov==2.7.1
 pytest-flask==0.15.1
