Update boto3 from 1.7.80 to 1.7.83 (pypi#4608)

Author: pyup-bot

requirements/main.txt

@@ -89,9 +89,9 @@ billiard==3.5.0.4 \
 bleach==2.1.4 \
     --hash=sha256:24754b9a7d530bf30ce7cbc805bc6cce785660b4a10ff3a43633728438c105ab \
     --hash=sha256:0ee95f6167129859c5dce9b1ca291ebdb5d8cd7e382ca0e237dfd0dad63f63d8
-boto3==1.7.80 \
-    --hash=sha256:8a71c68f0ff41bd8094a5b2c19170c93d99f98b09e3cf0e2dd9645b538460128 \
-    --hash=sha256:83abd7ced787d634b170aac56d1f3f79b464b9bea67a22d141f575a1d0856bc9
+boto3==1.7.83 \
+    --hash=sha256:ab9c7261fc30a99e3c3009ab599209001af311c94b8f6cb3b35ccd5369db07f8 \
+    --hash=sha256:c8381411249716aaa9f64f98be4a96818004ebf80daa7673a3db07d021c46594
 botocore==1.10.83 \
     --hash=sha256:ce14556d139fa0641ca7f1973ed68d19ba70691490f3840bd2c6d906e4a99fc8 \
     --hash=sha256:aeb54fd5f9a01399593e77612e7cdcf53e90a7d623378225685e599b989792d6