Microsoft.DataSqlTypes.SqlJson is missing ToString

[shueybubbles]

Describe the bug

the breaking change is that this call now returns the name of a Type instead of the string value of the json column:

                case SqlDataType.Json:
                    formattedValue = String.Format(
                        CultureInfo.InvariantCulture,
                        "CAST({0} AS Json)", SqlSmoObject.MakeSqlString(this.reader.GetProviderSpecificValue(columnIndex).ToString()));
                    break;

GetProviderSpecificValue(i) returns an instance of Microsoft.Data.SqlTypes.SqlJson, whose ToString() method doesn't have an implementation.
This feels like a bug in the driver, to me. It should return this.Value

-  (Microsoft.Data.SqlTypes.SqlJson)this {Microsoft.Data.SqlTypes.SqlJson} Microsoft.Data.SqlTypes.SqlJson
  IsNull false bool
  Value "[]" string
  _isNull false bool
  _jsonString "[]" string

To reproduce

The corresponding SMO code is at https://github.com/microsoft/sqlmanagementobjects/blob/1b5ffd2300252ddc4103da2c792c999a5ac6193a/src/Microsoft/SqlServer/Management/Smo/DataEnumerator.cs#L950

Expected behavior

ToString() should return the JSON text

Additional context

Customers using SMO to copy JSON data are blocked from upgrading to SqlClient 6.