fix: resolve revive unused-parameter issues in export_test

Rename unused ctx and imageID parameters to _ in
CleanupCancelledDeploy test export function.

internal/service/deploy/export_test.go

@@ -52,10 +52,10 @@ func NewTestServiceWithConfig(log *slog.Logger, cfg *config.Config, dockerClient
 // cleanupCancelledDeploy for testing. It removes build directories matching
 // the deployment ID prefix.
 func (svc *Service) CleanupCancelledDeploy(
-	ctx context.Context,
+	_ context.Context,
 	appName string,
 	deploymentID int64,
-	imageID string,
+	_ string,
 ) {
 	// We can't create real models.App/Deployment in tests easily,
 	// so we test the build dir cleanup portion directly.