[py] update required version of Python in setup file

Author: titusfortner

py/setup.py

@@ -38,7 +38,7 @@
         'Documentation': 'https://www.selenium.dev/documentation/overview/',
         'Source Code': 'https://github.com/SeleniumHQ/selenium/tree/trunk/py',
     },
-    'python_requires': '~=3.7',
+    'python_requires': '~=3.8',
     'classifiers': ['Development Status :: 5 - Production/Stable',
                     'Intended Audience :: Developers',
                     'License :: OSI Approved :: Apache Software License',
@@ -48,7 +48,6 @@
                     'Topic :: Software Development :: Testing',
                     'Topic :: Software Development :: Libraries',
                     'Programming Language :: Python',
-                    'Programming Language :: Python :: 3.7',
                     'Programming Language :: Python :: 3.8',
                     'Programming Language :: Python :: 3.9'],
     'package_dir': {