add 3.12 to noxfile

Author: skshetry

noxfile.py

@@ -16,7 +16,9 @@ def docs(session: nox.Session) -> None:
     session.run("mkdocs", "build")
 
 
-@nox.session(python=["3.8", "3.9", "3.10", "3.11", "pypy3.8", "pypy3.9"])
+@nox.session(
+    python=["3.8", "3.9", "3.10", "3.11", "3.12", "pypy3.8", "pypy3.9", "pypy3.10"]
+)
 def tests(session: nox.Session) -> None:
     session.install(".[tests]")
     session.run(