CI: unable to acquire identity from etcd-operator / cilium-etcd never achieves quorum

Tests which suffer from this sort of behavior:

* K8sDatapathConfig IPv4Only Check connectivity with IPv6 disabled

List of failures:
* https://jenkins.cilium.io/job/cilium-ginkgo/job/cilium/job/master/2731/
* https://jenkins.cilium.io/job/Ginkgo-CI-Tests-Pipeline/6667/