Creating a DjangoObjectType without either the fields or the exclude option is deprecated

[stephencockerill]

Upgrading to wagtail 5.1 and graphene 3.3 results in the following deprecation warnings for all models registered with wagtail-grapple:

/home/wagtail/.local/lib/python3.9/site-packages/graphene/utils/subclass_with_meta.py:46: DeprecationWarning: Creating a DjangoObjectType without either the fields or the exclude option is deprecated. Add an explicit fields = '__all__' option on DjangoObjectType StubBlogPost to use all fields

The issue appears to be coming from grapple.actions.build_node_type:

    class StubMeta:
        model = stub_model

Based on the warning, there should be a fields = '__all__' attribute included.

[patillacode]

I think the issue is fixed on the graphene side rather than here.

graphql-python/graphene#1530