Add test for Field exclude parameter

tests/test_pydantic/test_field.py

@@ -54,3 +54,16 @@ def test_repr():
 
     instance = Model(id=123, foo="bar")
     assert "foo=" not in repr(instance)
+
+
+def test_exclude():
+    class Model(SQLModel):
+        id: int
+        name: str
+        value: int = Field(exclude=True)
+
+    instance = Model(id=1, name="test", value=42)
+    dict_representation = instance.model_dump()
+    assert "id" in dict_representation
+    assert "name" in dict_representation
+    assert "value" not in dict_representation