fix: Add six dependency to requirements/core.txt (#363)

The-inside-man · web-flow · commit 411977869472 · 2021-12-07T09:52:43.000-05:00
Summary ------- - Add six dependency as it was missing from requirements/core.txt Note: This library is used throughout the core functionality of the SDK, however the build did not fail previously due to the six library being a transient dependency for jsonschema. Jsonschema is already in requirements/core.txt, however, we are now choosing to explicitly require the six dependency as we use this library explicitly in our SDK. Test plan --------- - FSC Issues ------ - #165
diff --git a/requirements/core.txt b/requirements/core.txt
@@ -3,4 +3,5 @@ pyrsistent==0.16.0
 requests>=2.21
 pyOpenSSL>=19.1.0
 cryptography>=2.8.0
-idna>=2.10
+idna>=2.10
+six>=1.12.0
