chore(deps): update quay.io/vexxhost/magnum-cluster-api:zed docker digest to 6bfe28a (#787)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
diff --git a/roles/defaults/vars/main.yml b/roles/defaults/vars/main.yml
index 2178b7e..c6cac2d 100644
--- a/roles/defaults/vars/main.yml
+++ b/roles/defaults/vars/main.yml
@@ -100,10 +100,10 @@
   local_path_provisioner: docker.io/rancher/local-path-provisioner:v0.0.24
   loki_gateway: docker.io/nginxinc/nginx-unprivileged:1.19-alpine
   loki: docker.io/grafana/loki:2.7.3
-  magnum_api: quay.io/vexxhost/magnum-cluster-api:zed@sha256:813796aacff7364a9b3b442ea373d970e65b573cc87f67af0f98c69f1a2fcc5a
-  magnum_cluster_api_proxy: quay.io/vexxhost/magnum-cluster-api:zed@sha256:813796aacff7364a9b3b442ea373d970e65b573cc87f67af0f98c69f1a2fcc5a
-  magnum_conductor: quay.io/vexxhost/magnum-cluster-api:zed@sha256:813796aacff7364a9b3b442ea373d970e65b573cc87f67af0f98c69f1a2fcc5a
-  magnum_db_sync: quay.io/vexxhost/magnum-cluster-api:zed@sha256:813796aacff7364a9b3b442ea373d970e65b573cc87f67af0f98c69f1a2fcc5a
+  magnum_api: quay.io/vexxhost/magnum-cluster-api:zed@sha256:6bfe28acf3648a2415658f2ea1e82ad5e08f66bc3620abd592e70e6aaebc0f73
+  magnum_cluster_api_proxy: quay.io/vexxhost/magnum-cluster-api:zed@sha256:6bfe28acf3648a2415658f2ea1e82ad5e08f66bc3620abd592e70e6aaebc0f73
+  magnum_conductor: quay.io/vexxhost/magnum-cluster-api:zed@sha256:6bfe28acf3648a2415658f2ea1e82ad5e08f66bc3620abd592e70e6aaebc0f73
+  magnum_db_sync: quay.io/vexxhost/magnum-cluster-api:zed@sha256:6bfe28acf3648a2415658f2ea1e82ad5e08f66bc3620abd592e70e6aaebc0f73
   magnum_registry: quay.io/vexxhost/magnum-cluster-api-registry:main@sha256:1623169a1ea93d0edfda0b602de1dabad6df9232d20489453071af397d9e8d84
   manila_api: quay.io/vexxhost/manila:zed@sha256:59c3bc27b6cf0740a4c87cbbd23b883bf7fa536659ac90f5aa765ad931e53e9e
   manila_data: quay.io/vexxhost/manila:zed@sha256:59c3bc27b6cf0740a4c87cbbd23b883bf7fa536659ac90f5aa765ad931e53e9e