chore: bump black from 25.1.0 to 26.3.1 in /services/admin-backend#285

dependabot[bot] wants to merge 1 commit intomainstackitcloud/rag-template:mainfrom

dependabot/pip/services/admin-backend/black-26.3.1stackitcloud/rag-template:dependabot/pip/services/admin-backend/black-26.3.1Copy head branch name to clipboard