fix: license classifier for pypi

Author: oesteban

setup.cfg

@@ -5,7 +5,7 @@ classifiers =
     Development Status :: 3 - Alpha
     Intended Audience :: Science/Research
     Topic :: Scientific/Engineering :: Image Recognition
-    License :: OSI Approved :: BSD License
+    License :: OSI Approved :: Apache Software License
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9