Update pip from 20.2.4 to 21.0.1 (#58)

pyup-bot · web-flow · commit 46125a903b2d · 2021-02-23T07:49:07.000-08:00
diff --git a/requirements_dev.txt b/requirements_dev.txt
@@ -1,4 +1,4 @@
-pip==20.2.4
+pip==21.0.1
 bump2version==1.0.1
 wheel==0.35.1
 watchdog==0.10.3
