minor change

Author: Anmol Binani

lib/content-deployment.js

@@ -2,12 +2,14 @@ const cds = require("@sap/cds");
 const { validateNotificationTypes, readFile } = require("./utils");
 const { processNotificationTypes } = require("./notificationTypes");
 const { setGlobalLogLevel } = require("@sap-cloud-sdk/util");
+const { basename } = require('path');
 
 async function deployNotificationTypes() {
   setGlobalLogLevel("error");
 
   // read notification types
-  const fileName = path.basename(cds.env.requires?.notifications?.types);
+  const filePath = cds.env.requires?.notifications?.types ?? '';
+  const fileName = basename(filePath);
   const notificationTypes = readFile(fileName);
 
   if (validateNotificationTypes(notificationTypes)) {