Add Safari versions for NamedNodeMap API (#8534)
Add Safari versions for NamedNodeMap API (#8534)

This PR adds real values for Safari (Desktop and iOS/iPadOS) for the `NamedNodeMap` API, based upon manual testing.

Test Code Used: `document.body.attributes`
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data