feat: add inspect argument

loader.js

@@ -106,6 +106,10 @@ function forkWorker(index, isPrimary) {
 	if (nconf.get('expose-gc')) {
 		execArgv.push('--expose-gc');
 	}
+	if (nconf.get('inspect')) {
+		execArgv.push('--inspect');
+	}
+
 	if (!ports[index]) {
 		return console.log(`[cluster] invalid port for worker : ${index} ports: ${ports.length}`);
 	}