Update setup.py to add 3.14 support classifiers

PiperOrigin-RevId: 838709749
Change-Id: Ic8c8343641e511d87a64b881a0cfcb00c474efdd

Author: jagapiou

setup.py

@@ -126,6 +126,7 @@ def build_assets(self):
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',
         'Programming Language :: Python :: 3.13',
+        'Programming Language :: Python :: 3.14',
         'Topic :: Scientific/Engineering :: Artificial Intelligence',
     ],
     cmdclass={'build_py': BuildPy},