[Bug fix] Missing diagnostics for pod creation failure in GMC after install_chatqna.sh execution

[aalbersk]

The issue: install_chatqna.sh script did not return any errors, when the expected pod is not created. There are no error messages or logs to diagnose the issue further. It's possible to see what happened only in logs of GMC.

Steps to Reproduce:

1. Break one of the manifests - make sure that the yaml is not valid. e.g. this one
2. Run the install_chatqna.sh script.
3. Observe that no errors are returned.
4. Check for the presence of the expected pod, check the logs of gmc-contoller for errors.

Expected Result:

an error message should be provided if the pod creation fails.

[SamPrinceFranklin]

E_RAG_TEAM_2 will be working on this