docs: add Cost-Effective Angular Testing (angular#44969)

to resources
PR Close angular#44969

Author: shairez

aio/content/marketing/resources.json

@@ -663,6 +663,11 @@
             "title": "Academia Binaria (español)",
             "url": "https://academia-binaria.com/"
           },
+          "-KLIxHwg-glQLXni1hvA": {
+            "desc": "How to write cost effective Angular tests without wasting time on slow and brittle techniques. This masterclass will show you the most effective testing strategies that will accelerate your learning and start you off on the right track. Brought to you by Shai Reznik (HiRez.io) totally free of charge.",
+            "title": "Angular FREE Testing Masterclass - Cost Effective Angular Testing",
+            "url": "https://hirez.link/aio-cost-effective-angular-testing"
+          },
           "-KN3uNQvxifu26D6WKJW": {
             "category": "Education",
             "desc": "Create the future of web applications by taking Angular for a test drive.",