Update Python dependencies

Author: mdmintz

requirements.txt

@@ -64,7 +64,9 @@ pyotp==2.4.1
 boto==2.49.0
 cffi==1.14.4
 toml==0.10.2
-Pillow==8.0.1
+Pillow==6.2.2;python_version<"3.5"
+Pillow==7.2.0;python_version>="3.5" and python_version<"3.6"
+Pillow==8.0.1;python_version>="3.6"
 rich==9.2.0;python_version>="3.6" and python_version<"4.0"
 zipp==1.2.0;python_version<"3.6"
 zipp==3.4.0;python_version>="3.6"

setup.py

@@ -168,7 +168,9 @@
         'boto==2.49.0',
         'cffi==1.14.4',
         'toml==0.10.2',
-        'Pillow==8.0.1',
+        'Pillow==6.2.2;python_version<"3.5"',
+        'Pillow==7.2.0;python_version>="3.5" and python_version<"3.6"',
+        'Pillow==8.0.1;python_version>="3.6"',
         'rich==9.2.0;python_version>="3.6" and python_version<"4.0"',
         'zipp==1.2.0;python_version<"3.6"',
         'zipp==3.4.0;python_version>="3.6"',