chore(deps): specify max pyee version

Author: atkinsonm

setup.py

@@ -35,7 +35,7 @@ def find_version(*file_paths):
       long_description=long_description,
       install_requires=[
           'flask>=2,<4',
-          'pyee>=8',
+          'pyee>=8.<12',
       ],
       classifiers=[
           'Development Status :: 5 - Production/Stable',