fix(types): add instance.dataValues property to model.d.ts

[spearmootz]

this allows typescript to have a definition for the instance.dataValues property

Pull Request Checklist

• Have you added new tests to prevent regressions?
• If a documentation update is necessary, have you opened a PR to the documentation repository?
• Did you update the typescript typings accordingly (if applicable)?
• Does the description below contain a link to an existing issue (Closes #[issue]) or a description of the issue you are solving?
• Does the name of your PR follow our conventions?

Description Of Change

this allows to get typings from

const sampleInstance = SampleModel.findByPk(pk);
sampleInstance.dataValues; //This currently does not exist in typings

Todos

[WikiRik]

We'll take a closer look at this later but you can add this commit to the PR to have this change supported by at least one test

[ephys]

Other than deleting remove-attribute.test.js, this should be good to go I think

[spearmootz]

Just wondering, will this make it to v6? Or do I have to make the PR elsewhere?

Suggestions done

[WikiRik]

Just wondering, will this make it to v6? Or do I have to make the PR elsewhere?

Not directly, but feel free to open a new PR towards v6. Just the change to model.d.ts wil do fine, no need to update the test

[spearmootz]

@WikiRik if you cloud. its the same change

#15240