docs: corrected example code of fetch API mocking in test runner. (#7492)

Update mocking.md

docs: corrected example code of fetch API mocking.

Signed-off-by: Mohammed Bilal Shareef <[email protected]>

Author: bilalshareef

apps/site/pages/en/learn/test-runner/mocking.md

@@ -208,7 +208,7 @@ describe('endpoints', { concurrency: true }, () => {
     };
 
     agent
-      .get('example.com')
+      .get('https://example.com')
       .intercept({
         path: endpoint,
         method: 'GET',
@@ -230,7 +230,7 @@ describe('endpoints', { concurrency: true }, () => {
     };
 
     agent
-      .get('example.com')
+      .get('https://example.com')
       .intercept({
         path: endpoint,
         method: 'PUT',