Model 字段包含泛型时，无法生成

## GORM Playground Link

https://github.com/go-gorm/playground/pull/1

## Description

1. models

```go
package models

import (
"gorm.io/datatypes"
)

type UserQuestionnaireStepAnswer struct {
StepID uint64 `gorm:"column:stepId;type:bigint(20) unsigned;not null;comment:步骤ID" json:"stepId,string"`
Answer datatypes.JSON `gorm:"column:answer;type:json;not null;comment:用户回答" json:"answer"`
}

// UserQuestionnaire 用户问卷表
type UserQuestionnaire struct {
ID uint64 `gorm:"column:id;type:bigint(20) unsigned;primaryKey;comment:ID" json:"id,string"`
Steps datatypes.JSONSlice[UserQuestionnaireStepAnswer] `gorm:"column:steps;type:json;not null;comment:各步骤的用户回答" json:"steps"`
}
```

2. gen

```go
// Code generated by 'gorm.io/cli/gorm'. DO NOT EDIT.

package gcli_gen

import (
"gorm.io/cli/gorm/field"

"internal/dal/models"
)

var UserQuestionnaire = struct {
ID field.Number[uint64]
Steps field.Struct[models.UserQuestionnaireStepAnswer]]
}{
ID: field.Number[uint64]{}.WithColumn("id"),
Steps: field.Struct[models.UserQuestionnaireStepAnswer]]{}.WithName("Steps"),
}
```

生成代码结果中 `Steps` 字段类型泛型缺失