When was the last time you cleaned your earphones? Ideally, you’re not leaving it long enough to see a sizable amount of crud building up (which is fairly unavoidable when you’re regularly shoving them into your ears), but if you happen to own a pair of Google Pixel Buds or Pixel Buds Pro then don’t worry — Google will soon remind you. As reported by 9to5Google, the latest version of the Pixel Buds app (version 1.0.555017123) includes a new notification that will prompt users to…