Update robocupssl/ssl-status-board Docker tag to v2.11.6

Author: renovate[bot]

docker-compose.yaml

@@ -12,7 +12,7 @@ services:
     restart: on-failure
 
   ssl-status-board:
-    image: robocupssl/ssl-status-board:2.11.5@sha256:833d01487b510a8b7851bfbb29723297ac4ab8d7f6d4dee6ceedf10c5335ee85
+    image: robocupssl/ssl-status-board:2.11.6@sha256:ea4903b695ea40b19a39db53675af71941256dcdbf6bf4f9525d09653ac62412
     command: [ "-address", ":8083" ]
     network_mode: host
     restart: on-failure