libcbor: update to 0.10.2Sponsored by: The FreeBSD Foundation
Import libcbor at 'contrib/libcbor/'git-subtree-dir: contrib/libcborgit-subtree-mainline: 293663f4da9e8b8aeb106ce3b73a8ed2aa2a8a90git-subtree-split: 5b2defbd2a1aa991bd0a2855eef8e15107572747