Bug#1077456: python-itemadapter: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p 3.12 returned exit code 13

[Andrey Rakhmatullin]

Control: forwarded -1 https://github.com/scrapy/itemadapter/issues/72

itemadapter doesn't yet support Pydantic 2.
Sorry for that.