Validation error on anyOf property

[JoranHonig]

Describe the bug
Model generation seems to fail on anyOf, I encountered this issue for the SARIF spec:

• https://raw.githubusercontent.com/oasis-tcs/sarif-spec/123e95847b13fbdd4cbe2120fa5e33355d4a042b/Schemata/sarif-schema-2.1.0.json

To Reproduce

Used commandline:

wget https://raw.githubusercontent.com/oasis-tcs/sarif-spec/123e95847b13fbdd4cbe2120fa5e33355d4a042b/Schemata/sarif-schema-2.1.0.json
$ datamodel-codegen sarif-schema-2.1.0.json --output model.py

...
  File "pydantic/main.py", line 341, in pydantic.main.BaseModel.__init__
pydantic.error_wrappers.ValidationError: 2 validation errors for JsonSchemaObject
properties -> anyOf
  value is not a valid dict (type=type_error.dict)
properties -> anyOf
  value could not be parsed to a boolean (type=type_error.bool)

Expected behavior
No errors 😅

[gaborbernat]

PR welcome.