What are those bumps?

So like a month ago I bought the ravioli in some Italian shop. I forgot to ate them and they expired 3 days ago. I opened them and they have these tiny bumps on them (colorless and it looks more like trapped air). No signs of mold, smells like normal ricotta and spinach ravioli.

I tried to check internet but I didn’t find a lot, only that it should be okay and sometimes pasta is textured like this to hold the sauce better. It’s the first time I see it, I haven’t looked at them properly before so maybe they looked like this from the beginning. It seems like the bumps are only around the centre, the edges are more smooth.

I don’t really have other food since I didn’t go grocery shopping yet so I’m hoping it’s absolutely harmless and I can eat them but I don’t want to give myself any extra problems so if you guys think it’s harmful, I’ll just throw them away. It doesn’t hurt to ask tho 🙂