backend/remote: Fix broken state lock retry
backend/remote: Fix broken state lock retry

When using the -lock-timeout option with the remote backend configured
in local operations mode, Terraform would fail to retry acquiring the
lock. This was caused by the lock error message having a missing Info
field, which the state manager requires to be present in order to
attempt retries.

ewbankkit/terraform,tommynsong/terraform,hashicorp/terraform,rnaveiras/terraform,ewbankkit/terraform,apparentlymart/terraform,apparentlymart/terraform,tommynsong/terraform,apparentlymart/terraform,rnaveiras/terraform,hashicorp/terraform,ewbankkit/terraform,rnaveiras/terraform,ewbankkit/terraform,hashicorp/terraform,apparentlymart/terraform,apparentlymart/terraform,tommynsong/terraform