BulkCreate with updateOnDuplicate option generates bad SQL Query

Issue Creation Checklist

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Bug Description

Having a model with an UUIDv4 Primary Key and trying to run model.bulkCreate with the updateOnDuplicate option enabled generates a bad SQL query for that primary key.

Found that around this line is the bug. For some reason it is returning the raw uuidv4 instead of an string.

Reproducible Example

const User = sequelize.define('User', {
  user_id: {
    type: DataTypes.UUIDV4,
    primaryKey: true,
    autoIncrement: true,
  },
  first_name: {
    type: DataTypes.STRING,
  },
  last_name: {
    type: DataTypes.STRING,
  },
});

async multiUpsertUser(users) {
    await User.bulkCreate(users, 
      {
        updateOnDuplicate: ['firstName', 'lastName'],
      }
    )
  }

Input (users)

[
  {
    user_id: null,
    owner_id: 'test,
    person_id: 'test',
  },
  {
    user_id: '1be8bec3-689e-4c68-918f-5622a09933d9',
    first_name: 'new,
    last_name: 'last',
  }
]

What do you expect to happen?

The generated query expected should have a valid UUID:

INSERT INTO "users" ("user_id","first_name","last_name")
VALUES (DEFAULT,'test','test'),
('1be8bec3-689e-4c68-918f-5622a09933d9','new','last')
ON CONFLICT ("user_id")
DO UPDATE SET "first_name"=EXCLUDED."first_name","last_name"=EXCLUDED."last_name"
RETURNING "user_id","first_name","last_name";

Note that the id is a plain text and not a string.

What is actually happening?

INSERT INTO "users" ("user_id","first_name","last_name")
VALUES (DEFAULT,'test','test'),
(1be8bec3-689e-4c68-918f-5622a09933d9,'new','last')
ON CONFLICT ("user_id")
DO UPDATE SET "first_name"=EXCLUDED."first_name","last_name"=EXCLUDED."last_name"
RETURNING "user_id","first_name","last_name";

The user_id is not a valid id

Environment

• Sequelize version: 6.32.0
• Node.js version: 16.20.1
• If TypeScript related: TypeScript version: 4.9.3
• Database & Version: PostgreSQL 14.7 on x86_64-pc-linux-gnu, compiled by Debian clang version 12.0.1, 64-bit
• Connector library & Version: pg@8.9.0, pg-pool@3.6.0

Would you be willing to resolve this issue by submitting a Pull Request?

• Yes, I have the time and I know how to start.
• Yes, I have the time but I will need guidance.
• No, I don't have the time, but my company or I are supporting Sequelize through donations on OpenCollective.
• No, I don't have the time, and I understand that I will need to wait until someone from the community or maintainers is interested in resolving my issue.

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Start with packages/core/src/dialects/abstract/query-generator.js around line 372 and reproduce the bulkCreate case using updateOnDuplicate and the UUIDv4 primary key against PostgreSQL. Compare the generated SQL with the expected query, then verify that the UUID is emitted as a valid quoted value rather than a raw token.