feat(data/finset/noncomm_prod): noncomm_prod_union_of_disjoint (#8169)
feat(data/finset/noncomm_prod): noncomm_prod_union_of_disjoint (#8169)




Co-authored-by: Yakov Pechersky <9925c0c20eafe10b1eaac37c5fe124dc0b28ca8c@users.noreply.github.com>

leanprover-community/mathlib,leanprover-community/mathlib