add support for py313, drop py37 (#404)

Author: kashifkhan

setup.py

@@ -273,12 +273,12 @@ def build_cmake(self, ext):
         'Programming Language :: Python',
         'Programming Language :: Python :: 3 :: Only',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
+        'Programming Language :: Python :: 3.13',
         'License :: OSI Approved :: MIT License'
     ],
     zip_safe=False,