Backport of snapshot: some improvments to the snapshot process into release/1.15.x#17277

hc-github-team-consul-core merged 5 commits intorelease/1.15.xhashicorp/consul:release/1.15.xfrom

backport/minor-update-snapshot-logger/illegally-aware-jackasshashicorp/consul:backport/minor-update-snapshot-logger/illegally-aware-jackassCopy head branch name to clipboard