community/nheko: fix build against fmt 10
cherry-picked another upstream build fix for fmt 10
https://github.com/Nheko-Reborn/nheko/commit/e89e65dc17020772eb057414b4f0c5d6f4ad98d0
Was in too much of a hurry with !51676 (merged)
cherry-picked another upstream build fix for fmt 10
https://github.com/Nheko-Reborn/nheko/commit/e89e65dc17020772eb057414b4f0c5d6f4ad98d0
Was in too much of a hurry with !51676 (merged)