Make view test snapshot deterministic

https://github.com/npm/cli/pull/1622/checks?check_run_id=951548971#step:5:469

Probably a good idea to replace any `published .*? ago` with a specific known string.  Something like this:

```js
t.cleanSnapshot = str => str.replace(/published .*? ago/g, 'published {TIME} ago'))
```