Permit Python 3.13 in pyproject.toml

Author: ndgrigorian

pyproject.toml

@@ -58,7 +58,7 @@ keywords = ["MKL", "VSL", "true randomness", "pseudorandomness",
 license = "BSD-3-Clause"
 name = "mkl_random"
 readme = {file = "README.md", content-type = "text/markdown"}
-requires-python = ">=3.9,<3.13"
+requires-python = ">=3.9,<=3.13"
 
 [project.optional-dependencies]
 test = ["pytest"]