Fixed compilation issue with fmt > 11

[hamdannawaz582]

fmt has deprecated using fmt::format by including fmt/core.h (see this file, this results in Kompute not compiling as a vcpkg project when its flags are set to KOMPUTE_OPT_USE_BUILT_IN_FMT=OFF as vcpkg defaults to version 12.2.

This PR fixes this issue by including fmt/format.h in the 2 files where fmt::format is used directly.

Confirmed to compile on linux both as a vcpkg project and via the standalone dependency resolution which still uses fmt 11.

[hamdannawaz582]

P.S. the steps suggested by the DCO bot don't work as I do not have permission to push to the repo

git push --force-with-lease origin fix-fmt-format
remote: Permission to KomputeProject/kompute.git denied to hamdannawaz582.
fatal: unable to access 'https://github.com/KomputeProject/kompute.git/': The requested URL returned error: 403

[axsaucedo]

@hamdannawaz582 you need to push to your own branch planar-project:fix-fmt-format

[axsaucedo]

Looks good - thank you!