Allow automatic mypy upgrades for mypy-1.0.x

Fixes #96

Author: kedder

setup.cfg

@@ -27,7 +27,7 @@ packages =
     zope-stubs
 package_dir = =src
 install_requires =
-    mypy==1.0.0
+    mypy>=1.0.0,<1.1.0
     zope.interface
     zope.schema
 include_package_data = True