Pipeline fixes

azure-pipelines.yml

@@ -31,11 +31,11 @@ stages:
         # wagtail we support, for testing purposes.
         py3.9:
           PYTHON_VERSION: '3.9'
-          WAGTAIL_VERSION: '6.3.*'
+          WAGTAIL_VERSION: '6.4.*'
           TEMPLATE: 'basic'
         py3.10:
           PYTHON_VERSION: '3.10'
-          WAGTAIL_VERSION: '6.3.*'
+          WAGTAIL_VERSION: '6.4.*'
           TEMPLATE: 'basic'
         py3.11:
           PYTHON_VERSION: '3.11'