Update pytest-runner from 4.2 to 5.2 (#25)

pyup-bot · web-flow · commit 986f0330e012 · 2020-10-19T00:03:04.000-07:00
diff --git a/requirements_dev.txt b/requirements_dev.txt
@@ -10,4 +10,4 @@ twine==3.2.0
 
 pytest==6.1.1
 pytest-aiohttp==0.3.0
-pytest-runner==4.2
+pytest-runner==5.2
