Make terraform apply -refresh-only trigger an Apply phase that republishes outputs to dependent stacks.

Currently, terraform apply -refresh-only in Spacelift does not cause the platform to re-upload the outputs blob to the dependency system. As a result, even when Terraform state changes and new output values exist, downstream stacks continue using stale cached outputs until a full Apply (or dummy output change) is performed.

Requested Behavior

Make terraform apply -refresh-only behave like a normal Apply in terms of output publishing, even if no resources are changed. The run should:

• Re-upload the stack’s outputs to Spacelift’s dependency system, and

• Trigger dependency propagation for downstream stacks if outputs differ from the previous cached blob.
  

Value / Benefit

• Allows safe, no-change “output refresh” runs to keep dependencies in sync.

• Reduces manual work (no dummy outputs or forced code changes).

• Prevents stale dependency values and confusion between UI state vs. dependency cache.

• Improves reliability for customers automating dependency-based workflows.