backend/docker: bump library/node from 18-alpine3.18 to 22-alpine3.18 in /backend#3

1995parham merged 1 commit intomainsnapp-incubator/hubble-ui:mainfrom

dependabot/docker/backend/library/node-22-alpine3.18snapp-incubator/hubble-ui:dependabot/docker/backend/library/node-22-alpine3.18Copy head branch name to clipboard