Nothing excludes the care of pets. It does exclude “animals for food” “as far as is possible and practical”. One could definitely extend this to animals for a pet’s diet, but I’d argue it’s not practical for cats because we don’t yet have solid evidence that says it’s safe. I just don’t think it’s rational to flatly liken it to torture.
I think I can see it from both sides, but it seems situational to me. Breeding cats sounds bad. For government animal shelters that run out of resources, I think the adoption of an animal that would otherwise be killed is logically consistent with the generic vegan philosophy.