Add trove classifier for GraalPython

GraalPython is an up-an-coming JIT-based implementation atop the Graal VM.

Author: masklinn

src/trove_classifiers/__init__.py

@@ -525,6 +525,7 @@
     "Programming Language :: Python :: 3.14",
     "Programming Language :: Python :: Implementation",
     "Programming Language :: Python :: Implementation :: CPython",
+    "Programming Language :: Python :: Implementation :: GraalPy",
     "Programming Language :: Python :: Implementation :: IronPython",
     "Programming Language :: Python :: Implementation :: Jython",
     "Programming Language :: Python :: Implementation :: MicroPython",