Update tomsquest/docker-radicale Docker tag to v3.5.6.0 (#532)

Co-authored-by: Renovate Bot <[email protected]>

Author: soerenschneider

apps/radicale/deployment.yaml

@@ -28,7 +28,7 @@ spec:
         seccompProfile:
           type: RuntimeDefault
       containers:
-        - image: "tomsquest/docker-radicale:3.5.4.0"
+        - image: "tomsquest/docker-radicale:3.5.6.0"
           name: "radicale"
           securityContext:
             allowPrivilegeEscalation: false