[QE][e2e] Update iqe-e2e-plugin to start using cert auth for calls to the Ingress /track endpoint

In iqe-e2e-plugin, there is a test where we verify the status of the uploaded archive using Ingress /track endpoint.

This call to Ingress currently uses JWT as authentication method. We need to change it to start using cert auth.

the cert and key that we must use for this test are stored in vault:

{ vault_path: secrets/qe/global/platform-pipeline-user, vault_key: cert }
{ vault_path: secrets/qe/global/platform-pipeline-user, vault_key: key }