chore: update docfx minimum Python version (#841)

dandhlee · web-flow · commit cd82ea1f9e7d · 2023-11-03T14:22:14.000-04:00
* chore: update docfx minimum Python version

* chore: unpin sphinx version to use sphinx plugin version
diff --git a/noxfile.py b/noxfile.py
@@ -201,16 +201,15 @@ def docs(session):
     )
 
 
-@nox.session(python="3.9")
+@nox.session(python="3.10")
 def docfx(session):
     """Build the docfx yaml files for this library."""
 
     session.install("-e", ".[tracing]")
     session.install(
-        "sphinx==4.0.1",
+        "gcp-sphinx-docfx-yaml",
         "alabaster",
         "recommonmark",
-        "gcp-sphinx-docfx-yaml",
         "django==2.2",
     )
 
