Use the latest pip, not a pinned version (#1367)

malemburg · web-flow · commit 2edc5f081036 · 2021-04-15T16:26:06.000+02:00
diff --git a/Makefile b/Makefile
@@ -122,7 +122,7 @@ deployment-requirements:
 	chmod a+r requirements.txt
 
 install:
-	pip install -U pip==19.3.1
+	pip install -U pip
 	pip install -U pip-tools
 	pip-sync requirements.txt
 
