community/fmt: upgrade to 7.0.2

Re-open of !10040 (closed)

Depends on !10526 (merged) (kodi needs patch for newer libmicrohttpd)

CI goes through but fails because the artifacts are too large

 ### Build summary ###
 >>> community/fmt: build succesfully
 >>> community/dolphin-emu: build succesfully
 >>> community/kodi: build succesfully
 >>> community/spdlog: build succesfully
 >>> community/waybar: build succesfully
 >>> testing/nheko: build succesfully