fix(docker): remove all remaining backslash-pipe YAML escape sequences

Author: RedjiJB

docker/docker-compose.advanced.yml

@@ -102,7 +102,7 @@ services:
       driver: json-file
       options: {max-size: "100m", max-file: "5"}
     healthcheck:
-      test: ["CMD-SHELL", "curl -sf http://localhost:9000/api/ | grep -qi 'cluster_id\|version' || exit 1"]
+      test: ["CMD-SHELL", "curl -sf http://localhost:9000/api/ | grep -qi 'cluster_id|version' || exit 1"]
       interval: 30s
       timeout: 15s
       retries: 10

docker/docker-compose.lan.yml

@@ -73,7 +73,7 @@ services:
     volumes:
       - graylog-l02-data:/usr/share/graylog/data
     healthcheck:
-      test: ["CMD-SHELL", "curl -sf http://localhost:9000/api/ | grep -qi 'cluster_id\|version' || exit 1"]
+      test: ["CMD-SHELL", "curl -sf http://localhost:9000/api/ | grep -qi 'cluster_id|version' || exit 1"]
       interval: 30s
       timeout: 15s
       retries: 10