feat: add logical not query operator

[ollieabbey]

What?

Add a not operator to where queries that allows you to negate the child query, alongside and and or.

Why?

Allows you to check the inverse of something. While this is already possible with some operators (e.g. equals has not_equals), I don't think it's possible to invert more complex conditions.

E.g. say there is an array field 'categories', we can currently query that the array contains a value

where: {
  categories: {
    contains: 'news'
  }
}

But now you can invert that to find documents that don't have the category news

where: {
  categories: {
	not: {
	  contains: 'news'
	}
  }
}

How?

Using the existing drizzle & mongoose apis for negating a query (mongoose uses nor rather than not, as not only accepts a field level expression, while nor accepts a full filter expression).

[r1tsuu]

Here's initial feedback:

[r1tsuu]

We should change this to _not in case if someone has field not defined so it won't be breaking for them. We explicitly say that fields that start with _ are internal

[r1tsuu]

I would like this test to exist in the database folder. However, you can create there a subfolder so you have a separate config from database like for example here https://github.com/payloadcms/payload/blob/main/test/database/migrate-to-blocks-as-json/config.ts

[r1tsuu]

Need some coverage with versions too.
payload.findVersions
payload.find({ draft: true }) - internally uses db.queryDrafts and I think this might actually fail

and with access control, ensure
not: { field: { equals } } cannot be queried if the user does not have access to field