❯ oc patch argocd openshift-gitops -n openshift-gitops --type=merge --patch-file deployment/argocd-openshift-gitops-patch.json
W0327 16:45:17.619917 13277 warnings.go:70] unknown field "spec.repo.volumes[0].path"
W0327 16:45:17.621164 13277 warnings.go:70] unknown field "spec.repo.volumes[0].readOnly"
argocd.argoproj.io/openshift-gitops patched

looking at the cr (missing the path and readOnly)
[root@jumphost2 ~]# oc get argocd openshift-gitops -n openshift-gitops -ojson | jq .spec.repo.volumes
[
{{{}}
"name": "kustomize"
}
]