Fix cymem pin

Author: ines

requirements.txt

@@ -1,3 +1,3 @@
-cymem>=2.0.1,<2.1.0
+cymem>=2.0.0,<2.1.0
 cython>=0.28
 pytest

setup.py

@@ -125,7 +125,7 @@ def setup_package():
             license=about['__license__'],
             ext_modules=ext_modules,
             setup_requires=['wheel>=0.32.0,<0.33.0'],
-            install_requires=['cymem>=2.0.1,<2.1.0'],
+            install_requires=['cymem>=2.0.0,<2.1.0'],
             classifiers=[
                 'Environment :: Console',
                 'Intended Audience :: Developers',