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• Does npm run test or npm run test-DIALECT pass with this change (including linting)?
• Does the description below contain a link to an existing issue (Closes #[issue]) or a description of the issue you are solving?
• Have you added new tests to prevent regressions?
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Description of change

The following code break since TypeScript 4.4.3 (it was working until 4.3.5).

MyModel.findAll({
    where: {
      [Op.and]: {
        myField: { [Op.is]: null },
      },
    },
  })

Looks like before 4.3.5 it does not complain if I put excess properties, e.g. the following code can be compiled.

MyModel.findAll({
    where: {
      [Op.and]: {
        myField: { someRandomString: null },
      },
    },
  })