Remove upper version bound for boto3

setup.py

@@ -27,7 +27,7 @@ REQS_BASE = [
     'pyeventsystem<2'
 ]
 REQS_AWS = [
-    'boto3>=1.9.86,<=1.9.114'
+    'boto3>=1.9.86'
 ]
 # Install azure>=3.0.0 package to find which of the azure libraries listed
 # below are compatible with each other. List individual libraries instead