Missing click events

Since Ophan tracker JS [v2.2.2](https://github.com/guardian/ophan/releases/tag/v2.2.2), no click events are being tracked for tags with a `data-link-name` attribute unless they are anchor tags.

If you want to see how many elements this affects on any given page, here's a quick JS function you can use:
```
const countNonAnchorTagsWithDataLinkName = () => {
return Array.from(window.document.querySelectorAll('[data-link-name]'))
.filter(el => el.tagName !== "A")
.reduce((acc,el) => {
if (!acc[el.tagName]) return { ...acc, [el.tagName]: 1 }
else return { ...acc, [el.tagName]: acc[el.tagName] + 1 }
},[])
}
```

These were presumably sending events via Ophan before v2.2.2 but will not be since this version of tracker JS