Add job to test with SQLAlchemy master (2.x)

Change-Id: I1283c057d804aa12ea09dad2ca467d2287bf7384
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

.zuul.yaml

@@ -43,6 +43,22 @@
       tox_environment:
         VAULT_PLUGIN_ENABLED: 1
 
+# Temporary job until SQLAlchemy 2.0 is no longer blocked by upper-requirements
+- job:
+    name: barbican-tox-py310-with-sqlalchemy-2x
+    parent: openstack-tox-py310
+    description: |
+      Run unit tests with main branch of SQLAlchemy, alembic and oslo.db.
+      Takes advantage of the base tox job's install-siblings feature.
+    # The job only tests the latest and shouldn't be run on the stable branches
+    branches: ^(?!stable)
+    required-projects:
+      - name: github.com/sqlalchemy/sqlalchemy
+        override-checkout: main
+      - name: github.com/sqlalchemy/alembic
+        override-checkout: main
+      - name: openstack/oslo.db
+
 - job:
     name: barbican-kmip-tox-functional
     parent: devstack-tox-functional
@@ -117,9 +133,11 @@
         - barbican-tox-functional-fips:
             voting: false
         - octavia-v2-dsvm-tls-barbican
+        - barbican-tox-py310-with-sqlalchemy-2x
     gate:
       jobs:
         - barbican-tox-functional
+        - barbican-tox-py310-with-sqlalchemy-2x
     experimental:
       jobs:
         - barbican-dogtag-tox-functional