Build: Fixed mismatched quotes typo in setup.

setup.py

@@ -37,7 +37,7 @@ setup(
         'aiohttp>=2.2.5',
         'PyYAML>=3.12',
         'six>=1.10.0',  # required gremlinpython dep
-        'inflection>=0.3.1"
+        'inflection>=0.3.1'
     ],
     test_suite='tests',
     setup_requires=['pytest-runner'],