[codespell] Adding CI target for Tox Codespell

Third in a series of commits to add Codespell to Ironic Repos. This commit adds the Tox Target to CI

A future commit could potentially add a git-blame-ignore-revs file if their are lots of spelling mistakes that could clutter git blame.

Change-Id: Ica261e5e528bde8ec4f1627f3560e8c2022e3370

zuul.d/ironic-python-agent-builder-jobs.yaml

@@ -142,3 +142,11 @@
     nodeset: ubuntu-jammy-arm64
     vars:
       image_target_name: ubuntu-arm64
+
+
+- job:
+    name: ironic-python-agent-builder-tox-codespell
+    parent: openstack-tox
+    timeout: 7200
+    vars:
+      tox_envlist: codespell

zuul.d/project.yaml

@@ -25,6 +25,8 @@
             voting: false
         - ipa-tempest-ironic-inspector-src:
             voting: false
+        - ironic-python-agent-builder-tox-codespell:
+            voting: false
     gate:
       jobs:
         - openstack-tox-pep8