py-xxhash: add v3.3.0-3.6.0 (spack#2183)

Signed-off-by: Ryan Krattiger <ryan.krattiger@kitware.com>

Author: kwryankrattiger

repos/spack_repo/builtin/packages/py_xxhash/package.py

@@ -16,6 +16,10 @@ class PyXxhash(PythonPackage):
 
     license("BSD-2-Clause")
 
+    version("3.6.0", sha256="f0162a78b13a0d7617b2845b90c763339d1f1d82bb04a4b07f4ab535cc5e05d6")
+    version("3.5.0", sha256="84f2caddf951c9cbf8dc2e22a89d4ccf5d86391ac6418fe81e3c67d0cf60b45f")
+    version("3.4.1", sha256="0379d6cf1ff987cd421609a264ce025e74f346e3e145dd106c0cc2e3ec3f99a9")
+    version("3.3.0", sha256="c3f9e322b1ebeebd44e3d9d2d9b124e0c550c1ef41bd552afdcdd719516ee41a")
     version("3.2.0", sha256="1afd47af8955c5db730f630ad53ae798cf7fae0acb64cebb3cf94d35c47dd088")
     version("2.0.2", sha256="b7bead8cf6210eadf9cecf356e17af794f57c0939a3d420a00d87ea652f87b49")