build(deps): bump nextcloud-releases/whiteboard from v1.5.4 to v1.5.6 in /Containers/whiteboard#7566

dependabot[bot] wants to merge 1 commit intomainnextcloud/all-in-one:mainfrom

dependabot/docker/Containers/whiteboard/nextcloud-releases/whiteboard-v1.5.6nextcloud/all-in-one:dependabot/docker/Containers/whiteboard/nextcloud-releases/whiteboard-v1.5.6Copy head branch name to clipboard