Use star-free new syntax for python requires

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

setup.cfg

@@ -55,7 +55,7 @@ zip_safe = false
 
 setup_requires = setuptools_scm[toml] >= 4
 
-python_requires = >=3.6.*
+python_requires = >=3.6
 
 install_requires =
     attrs