Use py313 for all neutron-lib jobs

There is a job definition here for testing
neutron-lib with the master branch of neutron.
As neutron is no longer testing py312 in its master
gate for 2026.1, start using the py313 version
of this job so we can move forward.

Also moved the sqlalchemy job to start using py313
as well.

Also updated the testing runtime to include 3.13
and removed 3.9 based on 2026.1 governance [0].

[0] https://review.opendev.org/c/openstack/governance/+/957199

Depends-on: https://review.opendev.org/c/openstack/neutron/+/972734

Change-Id: I7bc70ca5266425a741146fff74871e9f992895ab
Signed-off-by: Brian Haley <haleyb.dev@gmail.com>

.zuul.yaml

@@ -1,6 +1,6 @@
 - job:
-    name: openstack-tox-py312-with-neutron
-    parent: openstack-tox-py312
+    name: openstack-tox-py313-with-neutron
+    parent: openstack-tox-py313
     timeout: 3600
     vars:
       zuul_work_dir: "{{ ansible_user_dir }}/{{ zuul.projects['opendev.org/openstack/neutron'].src_dir }}"
@@ -19,8 +19,8 @@
       - neutron-tempest-plugin-jobs
     check:
       jobs:
-        - openstack-tox-py312-with-neutron
-        - openstack-tox-py312-with-sqlalchemy-master
+        - openstack-tox-py313-with-neutron
+        - openstack-tox-py313-with-sqlalchemy-master
         - neutron-functional: &neutron-functional
             irrelevant-files:
               - ^.*\.rst$

setup.cfg

@@ -6,7 +6,7 @@ description_file =
 author = OpenStack
 author_email = openstack-discuss@lists.openstack.org
 home_page = https://docs.openstack.org/neutron-lib/latest/
-python_requires = >=3.9
+python_requires = >=3.10
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -15,10 +15,11 @@ classifier =
     Operating System :: POSIX :: Linux
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
+    Programming Language :: Python :: 3 :: Only
 
 [files]
 packages =