minor version change to docs session to confirm CI/CD execution

Author: chalmerlowe

packages/bigframes/noxfile.py

@@ -514,7 +514,7 @@ def cover(session):
     session.run("coverage", "erase")
 
 
-@nox.session(python="3.10")
+@nox.session(python="3.13")
 def docs(session):
     """Build the docs for this library."""
     session.install("-e", ".[scikit-learn]")