Do you want to migrate all workspaces to "s3"?
Both the existing "local" backend and the newly configured "s3" backend
support workspaces. When migrating between backends, Terraform will copy
all workspaces (with the same names). THIS WILL OVERWRITE any conflicting
states in the destination.
Terraform initialization doesn't currently migrate only select workspaces.
If you want to migrate a select number of workspaces, you must manually
pull and push those states.
If you answer "yes", Terraform will migrate all states. If you answer
"no", Terraform will abort.