Update the "cffi" requirement to "v1.14.3"

Author: mdmintz

requirements.txt

@@ -58,7 +58,7 @@ coverage==5.3
 brython==3.8.10
 pyotp==2.4.0
 boto==2.49.0
-cffi==1.14.2
+cffi==1.14.3
 rich==7.0.0;python_version>="3.6" and python_version<"4.0"
 flake8==3.7.9;python_version<"3.5"
 flake8==3.8.3;python_version>="3.5"

setup.py

@@ -150,7 +150,7 @@
         'brython==3.8.10',
         'pyotp==2.4.0',
         'boto==2.49.0',
-        'cffi==1.14.2',
+        'cffi==1.14.3',
         'rich==7.0.0;python_version>="3.6" and python_version<"4.0"',
         'flake8==3.7.9;python_version<"3.5"',
         'flake8==3.8.3;python_version>="3.5"',