Most jobs don't actually require, expect, or even provide opportunity for you to learn new skills all the time. And that actually can be part of the burnout problem.
You'll have to learn a few when you start. That's okay. What you're feeling as senioritis is basically "I've been doing this same shit for the past 4+ years", and by this point, even in a 'new' class, it feels largely the same, and it's a bump on the road to the outcome you want, and no longer interesting.
Remember how you felt as a freshman though? Coming in when you knew nothing/comparatively little, and having to actually learn something, everything ahead was just one big mess of possibilities?
Well...that's what getting a job offer for the first time is. For about 4-6 months. After that, most of the time, the rose tinted glasses come off and you realize "oh. I know what I'm doing at this point. I've learned what I need to learn. And there's not really anything left except for me to come in, work toward a known outcome, and then go home". Companies don't adopt new technologies if they can avoid it. They don't care about you learning new things. They just want you producing, so they can capture the value you generate and pay you a part of it. What's left to learn is the business domain and the specific combination of decisions others made in the past that you now have to navigate.
Which, if you have a rich enough life outside of work, the job isn't too demanding, and are paid enough to be comfortable, can be fine for some people. The feelings of security a predictable, well paid job provides can fund what they actually care about in life. For others, it feels like they're spinning their wheels on the activity they spend the majority of their time on and they want something else.
How you, personally, respond, is going to be something you figure out as you go. And it can change. I was a lot more "I need fulfillment from my job" when I was younger; now I just need a good enough paycheck and enough freedom in hours and such (WFH is a must) to be able to do the stuff I actually care about and find value in.
So my advice is don't worry too much about it. Mentally prepare for the process of applying all over the place and potentially not getting an offer for a while, but once you get something you'll almost assuredly be excited and eager to prove yourself, and you can start figuring out what is important to you.