fix: corrected content-types for tests

Author: abhinav-from-contentstack

test/config.js

@@ -5,7 +5,7 @@ module.exports = {
     stack: { 'api_key': process.env.API_KEY, 'delivery_token': process.env.DELIVERY_TOKEN, 'environment': process.env.ENVIRONMENT,  },
     host: process.env.HOST,
     contentTypes: {
-        source: "author",
-        numbers_content_type: "blog_post"
+        source: "source",
+        numbers_content_type: "numbers_content_type"
     },
 }