ConnorOKane-Kainos

adding the azurelinux node pool to test plum

1

### Jira link - https://tools.hmcts.net/jira/browse/DTSPO-18233 ### Change description ### Testing plum using the new Azure Linux nodepool that we have created here - https://github.com/hmcts/aks-cft-deploy/blob/83f42d1098c4e94eba960413dd738ba42507c2af/components/aks/aks.tf ### Checklist - [x] commit messages...