fix: add blank lines before return statements (nlreturn)

Fix nlreturn linting issues by adding blank lines before return
statements in cli and secret packages.

internal/cli/generate.go

@@ -50,6 +50,7 @@ func newGenerateSecretCmd() *cobra.Command {
 			force, _ := cmd.Flags().GetBool("force")
 
 			cli := NewCLIInstance()
+
 			return cli.GenerateSecret(cmd, args[0], length, secretType, force)
 		},
 	}
@@ -134,6 +135,7 @@ func (cli *Instance) GenerateSecret(
 	}
 
 	cmd.Printf("Generated and stored %d-character %s secret: %s\n", length, secretType, secretName)
+
 	return nil
 }