[stable/2023.1] [ATMOSPHERE-595] update libvirt-tls-sidecar image tag to latest  (#2171)

fix #2167
diff --git a/roles/defaults/vars/main.yml b/roles/defaults/vars/main.yml
index bae7f04..b977649 100644
--- a/roles/defaults/vars/main.yml
+++ b/roles/defaults/vars/main.yml
@@ -120,7 +120,7 @@
   kube_vip: ghcr.io/kube-vip/kube-vip:v0.6.4
   kubectl: docker.io/bitnami/kubectl:1.27.3
   libvirt: "registry.atmosphere.dev/library/libvirtd:{{ atmosphere_release }}"
-  libvirt_tls_sidecar: "registry.atmosphere.dev/library/libvirt-tls-sidecar:{{ atmosphere_release }}"
+  libvirt_tls_sidecar: registry.atmosphere.dev/library/libvirt-tls-sidecar:latest
   libvirt_exporter: registry.atmosphere.dev/library/libvirtd-exporter:latest
   local_path_provisioner_helper: docker.io/library/busybox:1.36.0
   local_path_provisioner: docker.io/rancher/local-path-provisioner:v0.0.24