Refresh Python dependencies

Author: mdmintz

requirements.txt

@@ -44,6 +44,7 @@ urllib3==1.26.12
 requests==2.27.1;python_version<"3.6"
 requests==2.27.1;python_version>="3.6" and python_version<"3.7"
 requests==2.28.1;python_version>="3.7"
+requests-toolbelt==0.10.0
 nose==1.3.7
 sniffio==1.3.0;python_version>="3.7"
 h11==0.14.0;python_version>="3.7"

setup.py

@@ -169,6 +169,7 @@
         'urllib3==1.26.12',  # Stay in sync with "requests"
         'requests==2.27.1;python_version<"3.7"',
         'requests==2.28.1;python_version>="3.7"',
+        'requests-toolbelt==0.10.0',
         "nose==1.3.7",
         'sniffio==1.3.0;python_version>="3.7"',
         'h11==0.14.0;python_version>="3.7"',