Add classifier for Hy (#173)

Author: Kodiologist

src/trove_classifiers/__init__.py

@@ -462,6 +462,7 @@
     "Programming Language :: Fortran",
     "Programming Language :: Go",
     "Programming Language :: Haskell",
+    "Programming Language :: Hy",
     "Programming Language :: Java",
     "Programming Language :: JavaScript",
     "Programming Language :: Kotlin",