Fix mypy's redis requirements issues

4383 · 4383 · commit 46d8bf158be5 · 2021-08-20T13:09:58.000+02:00
types-redis and types-decorator seems missing requirements, these
changes add them to the mypy tox environment.

Change-Id: Iee34ed090895728ae4e46c45eb4ef56ba6a43a4b
diff --git a/tox.ini b/tox.ini
@@ -55,6 +55,8 @@ usedevelop=True
 basepython = python3
 deps=
     mypy
+    types-decorator
+    types-redis
     redis
     Mako
     decorator
