Typings for QueryInterface do not match actual code.

[Vilsol]

Issue Description

What was unclear/insufficient/not covered in the documentation

The typings for QueryInterface upsert function is wrong. The library function has a where parameter, whereas the typings don't have it.

If possible: Provide some suggestion on how we can enhance the docs

Please update the typings to match actual code.

Additional context

Typings: https://github.com/sequelize/sequelize/blob/master/types/lib/query-interface.d.ts#L444
Actual Function: https://github.com/sequelize/sequelize/blob/master/lib/query-interface.js#L891

Issue Template Checklist

Is this issue dialect-specific?

• No. This issue is relevant to Sequelize as a whole.
• Yes. This issue only applies to the following dialect(s): XXX, YYY, ZZZ
• I don't know.

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 don't know how to start, I would need guidance.
• No, I don't have the time, although I believe I could do it if I had the time...
• No, I don't have the time and I wouldn't even know how to start.

[papb]

Thanks for taking the time to post a great issue. The additional context you posted was very helpful.