Allow requests 2.20.x

Signed-off-by: Ofek Lev <[email protected]>

setup.py

@@ -33,7 +33,7 @@ install_requires = [
     'cached-property >= 1.2.0, < 2',
     'docopt >= 0.6.1, < 0.7',
     'PyYAML >= 3.10, < 4',
-    'requests >= 2.6.1, != 2.11.0, != 2.12.2, != 2.18.0, < 2.20',
+    'requests >= 2.6.1, != 2.11.0, != 2.12.2, != 2.18.0, < 2.21',
     'texttable >= 0.9.0, < 0.10',
     'websocket-client >= 0.32.0, < 1.0',
     'docker >= 3.5.0, < 4.0',