Update python versions for testing

Given the 2025.2 (Flamingo) python runtimes [0], drop the
functional-py39 and functional-py311 jobs and add functional-py310
and functional-py312 jobs.  Also adjust tox.ini to drop the
functional-py39 definition and add functional-py313.

[0] https://governance.openstack.org/tc/reference/runtimes/2025.2.html

Change-Id: Icd1a079cfab9367e52ac679fc86c3d055f4e9ee4

.zuul.yaml

@@ -20,21 +20,22 @@
       - ^cinderclient/tests/unit/.*$
 
 - job:
-    name: python-cinderclient-functional-py39
+    name: python-cinderclient-functional-py310
     parent: python-cinderclient-functional-base
-    nodeset: devstack-single-node-centos-9-stream
+    # Python 3.10 is the default on Ubuntu 22.04 (Jammy)
+    nodeset: openstack-single-node-jammy
     vars:
-      python_version: 3.9
-      tox_envlist: functional-py39
+      python_version: 3.10
+      tox_envlist: functional-py310
 
 - job:
-    name: python-cinderclient-functional-py311
+    name: python-cinderclient-functional-py312
     parent: python-cinderclient-functional-base
-    # use debian bookworm, where py3.11 is the default
-    nodeset: devstack-single-node-debian-bookworm
+    # Python 3.12 is the default on Ubuntu 24.04 (Noble)
+    nodeset: openstack-single-node-noble
     vars:
-      python_version: 3.11
-      tox_envlist: functional-py311
+      python_version: 3.12
+      tox_envlist: functional-py312
 
 - project:
     vars:
@@ -48,11 +49,11 @@
       - release-notes-jobs-python3
     check:
       jobs:
-        - python-cinderclient-functional-py39
-        - python-cinderclient-functional-py311
+        - python-cinderclient-functional-py310
+        - python-cinderclient-functional-py312
         - openstack-tox-pylint:
             voting: false
     gate:
       jobs:
-        - python-cinderclient-functional-py39
-        - python-cinderclient-functional-py311
+        - python-cinderclient-functional-py310
+        - python-cinderclient-functional-py312

tox.ini

@@ -107,7 +107,7 @@ setenv =
 # TLS (https) server certificate.
 passenv = OS_*
 
-[testenv:functional-py{3,39,310,311,312}]
+[testenv:functional-py{3,310,311,312,313}]
 deps = {[testenv:functional]deps}
 setenv = {[testenv:functional]setenv}
 passenv = {[testenv:functional]passenv}