Update requests from 2.19.1 to 2.20.0

Author: pyup-bot

requirements/default.txt

@@ -178,9 +178,9 @@ pytest-testrail==1.1.6 \
 raven==6.9.0 \
     --hash=sha256:95f44f3ea2c1b176d5450df4becdb96c15bf2632888f9ab193e9dd22300ce46a \
     --hash=sha256:3fd787d19ebb49919268f06f19310e8112d619ef364f7989246fc8753d469888
-requests==2.19.1 \
-    --hash=sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1 \
-    --hash=sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a
+requests==2.20.0 \
+    --hash=sha256:a84b8c9ab6239b578f22d1c21d51b696dcfe004032bb80ea832398d6909d7279 \
+    --hash=sha256:99dcfdaaeb17caf6e526f32b6a7b780461512ab3f1d992187801694cba42770c
 requests-hawk==1.0.0 \
     --hash=sha256:aef0dff8053dcae2057774516386bed0a3bc03fabea9e18f3aa98f02672ea5d0 \
     --hash=sha256:c2626ab31ebef0c81b97781c44c2275bfcc6d8e8520fc4ced495f0f386f8fe26