Bump httplib2 upper bound to <1.0.0 (#39280)

This allows for httplib2 0.32.0 which includes a fix for CVE-2026-59939.

Resolves #39279.

Author: tpwo

sdks/python/setup.py

@@ -421,7 +421,7 @@ def get_portability_package_data():
           'fastavro>=0.23.6,<2',
           'fasteners>=0.3,<1.0',
           'grpcio>=1.33.1,<2,!=1.48.0,!=1.59.*,!=1.60.*,!=1.61.*,!=1.62.0,!=1.62.1,!=1.66.*,!=1.67.*,!=1.68.*,!=1.69.*,!=1.70.*',  # pylint: disable=line-too-long
-          'httplib2>=0.8,<0.32.0',
+          'httplib2>=0.8,<1.0.0',
           'jsonpickle>=3.0.4,<5.0.0',
           # numpy can have breaking changes in minor versions.
           # Use a strict upper bound.