Update python-requires in setup.cfg

Signed-off-by: Tushar Goel <tushar.goel.dav@gmail.com>

Author: TG1999

setup.cfg

@@ -51,7 +51,7 @@ zip_safe = false
 
 setup_requires = setuptools_scm[toml] >= 4
 
-python_requires = >=3.6.*
+python_requires = >=3.7
 
 install_requires =
     attrs >= 18.1, !=20.1.0