Add support for pydantic v2 via pydantic.v1 compat module (#16332)

changelog.d/16332.misc

poetry.lock

pyproject.toml

scripts-dev/check_pydantic_models.py

synapse/_pydantic_compat.py

synapse/config/_util.py

synapse/config/workers.py

synapse/events/validator.py

synapse/http/servlet.py

synapse/rest/client/account.py

synapse/rest/client/devices.py

synapse/rest/client/directory.py

synapse/rest/client/models.py

synapse/rest/key/v2/remote_key_resource.py

synapse/rest/models.py

synapse/storage/background_updates.py

tests/rest/client/test_models.py