Add trove classifier for GraalPython (#188)

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

Co-authored-by: Dustin Ingram <[email protected]>

Author: masklinn

src/trove_classifiers/__init__.py

@@ -537,6 +537,7 @@
     "Programming Language :: Python :: Free Threading :: 4 - Resilient",
     "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",