I had umbilical hernia surgery about 5 years ago. No, this doesn't have to permanently effect your lifting. Many people have hernia repairs and do just fine after they heal.
My innie belly button became an outie, post pregnancy. It wasn't a big concern until it started to hurt when I laughed and coughed, and when doing something like a hanging leg raise. My lifting didn't cause it, but it did likely make it worse. If you have to have it repaired, it will mean NOT lifting for at least 6 weeks, although it may take many months to heal completely. Scar tissue is less flexible, so it may take 6 months to a year before you feel like it's "normal" and not "pulling" when you brace your core.
To keep from having it happen again? Be serious about letting it heal before you go back to the gym.
My experience was more involved because the doc chose to make a low c-section incision (instead of just going in with a small incision at the belly button and mesh) so he could repair the split in my abdominus rectus that caused the weak spot in the first place. I have internal stitches from above my belly button all the way to the pelvis. Yours would likely be MUCH less involved.
FYI, many people have minor umbilical hernias that never require surgery. Mine was serious enough that he wanted me to get it fixed, ASAP before it turned into an emergency deal.
@2busy has the dubious honor of having a lot of experience with hernias, although I don't think he's had an umbilical hernia? Anyway, he's your man. If he doesn't see this, he keeps a log in the Over 35 Forum. Go look him up.