Multiple Validation failures causes server crash #8826

New Issue Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.
• I can reproduce the issue with the latest version of Parse Server.

Issue Description

I have multiple fields to validate before saving an object. But in certain conditions, This causes server to crash

Steps to reproduce

Cloud Code:

Parse.Cloud.beforeSave('JobList', async (request) => {}, {
  fields: {
    type: {
      required: true,
      type: String,
      options: ['Option A', 'Option B'],
    },
    project: {required: true},
  },
  validateMasterKey: true,
});

Field project is a pointer to another class.

send a save request with empty project field and an invalid string for type field (Anything other than "Option A" or "Option B").

Actual Outcome

The client receives the response Validation failed. Please specify data for project. but also server crashes!

Expected Outcome

The response can have either one of validation failed messages. but server should not crash.

Environment

Server

• Parse Server version: 6.4.0
• Operating system: Windows
• Local or remote host (AWS, Azure, Google Cloud, Heroku, Digital Ocean, etc): Local

Database

• System (MongoDB or Postgres): MongoDB
• Database version: 6.0.9
• Local or remote host (MongoDB Atlas, mLab, AWS, Azure, Google Cloud, etc): MongoDB Atlas

Client

• SDK (iOS, Android, JavaScript, PHP, Unity, etc): Parse Dashboard v-5.3.0

Logs

Server writes the following error message in console:

[UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason "Validation failed. Invalid option for type. Expected: Option A, Option B".] {
  code: 'ERR_UNHANDLED_REJECTION'
}