[release-3.6] Bump bbolt to v1.4.2#20267

ahrtr merged 1 commit intoetcd-io:release-3.6etcd-io/etcd:release-3.6from

ivanvc:release-3.6-bbolt-1.4.2ivanvc/etcd:release-3.6-bbolt-1.4.2Copy head branch name to clipboard