Custom types are not honored with certain Field constraints

[kevinjacobs-delfi]

Describe the bug
Custom types are not honored with certain Field constraints.

from pydantic import Field
from dataclasses_avroschema.pydantic import AvroBaseModel
from dataclasses_avroschema.types import Int32

class A(AvroBaseModel):
    a: Int32

class B(AvroBaseModel):
    b: Int32 = Field(ge=0)

print(A.avro_schema())
print(B.avro_schema())

which outputs

{"type": "record", "name": "A", "fields": [{"name": "a", "type": "int"}]}
{"type": "record", "name": "B", "fields": [{"name": "b", "type": "long"}]}

where B's type is long and not int as I would expect.