adding error checks

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "switchboard"]
+	path = switchboard
+	url = git@github.com:porter-dev/switchboard.git

cli/cmd/apply.go

@@ -810,7 +810,7 @@ func (t *DeploymentHook) PreApply() error {
 	)
 
 	if err != nil {
-		return err
+		return fmt.Errorf("error listing environments: %w", err)
 	}
 
 	envs := *envList

switchboard

@@ -0,0 +1 @@
+Subproject commit 4b73f6869b8ae10f148d887b4ec8d7347696982d