fix(tests): correct MailSlurp API URL to fix email OTP retrieval

- Override default host from python.api.mailslurp.com to api.mailslurp.com
- Fixes bug in MailSlurp Python client v15.19.22 with incorrect default URL
- Authentication flow was working perfectly, issue was wrong API endpoint
- OTP email retrieval now works successfully

This was the root cause of CI authentication timeouts - the Python client
was hitting a non-existent subdomain instead of the official API.

Author: CodeSchwert

sample/Tests/src/fetch_otp.py

@@ -9,6 +9,8 @@
 def get_mailslurp_client():
     configuration = mailslurp_client.Configuration()
     configuration.api_key['x-api-key'] = os.getenv('MAILSLURP_API_KEY')
+    # Use the correct API base URL as per official docs
+    configuration.host = "https://api.mailslurp.com"
     api_client = mailslurp_client.ApiClient(configuration)
     waitfor_controller = WaitForControllerApi(api_client)
     return waitfor_controller