test: restore Python runtimes to match split repo

Author: chalmerlowe

packages/bigframes/noxfile.py

@@ -55,7 +55,7 @@
 
 DEFAULT_PYTHON_VERSION = "3.14"
 
-ALL_PYTHON = ["3.10", "3.11", "3.12", "3.13", "3.14"]
+ALL_PYTHON = ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
 UNIT_TEST_STANDARD_DEPENDENCIES = [
     "mock",
     PYTEST_VERSION,
@@ -100,7 +100,6 @@
     # Make sure we leave some versions without "extras" so we know those
     # dependencies are actually optional.
     "3.10": ["tests", "scikit-learn", "anywidget"],
-    "3.11": ["tests"],
     "3.12": ["tests", "scikit-learn", "polars", "anywidget"],
     "3.13": ["tests", "polars", "anywidget"],
     "3.14": ["tests", "polars", "anywidget"],