correct documentation typo

StateReplaceProviderAction#StateUpdate now correctly documents that the
method updates a provider address in TF state.

tfmigrate/state_replace_provider_action.go

@@ -27,7 +27,7 @@ func NewStateReplaceProviderAction(source string, destination string) *StateRepl
 }
 
 // StateUpdate updates a given state and returns a new state.
-// It moves a resource from source address to destination address in the same tfstate file.
+// It moves a provider from source address to destination address in the same tfstate file.
 func (a *StateReplaceProviderAction) StateUpdate(ctx context.Context, tf tfexec.TerraformCLI, state *tfexec.State) (*tfexec.State, error) {
 	// Disable unnecessary state backup here,
 	// because we never restore state from the backup generated by each state action.