Apparently they wrote it correctly at the time, with an m: https://traefik.io/blog/introducing-distributed-cheese-traef...
A significant portion of TraefikLabs' engineering team and maintainers are French. Before each new release, the team holds polls and spirited debates to determine which cheese would be the perfect fit for the version name.
Staying true to French culinary tradition, the enterprise versions are given wine codenames, with each wine carefully selected to pair perfectly with its corresponding cheese release.