[Backport 0.29] feat: add ABAC validation to the application existence query (#1127)#1130

andrii-codefresh wants to merge 4 commits intostable/0.29codefresh-io/gitops-runtime-helm:stable/0.29from

cherry-pick/0.29-manualcodefresh-io/gitops-runtime-helm:cherry-pick/0.29-manualCopy head branch name to clipboard