Often, when we try to set new workout goals, we try to squeeze classes and runs into the mornings. And it’s easy to see why mornings are a great time to squeeze in cardio: You get it out of the way and reduce the likelihood of you canceling a workout commitment later on. But here’s the thing: Some of us will never become morning people. If you’re more likely to hit snooze than leap out of bed when your 6 a.m. pre–spin class alarm goes off, you may…