Flatpak: Fix sha256 checksum of libaio
Somehow the checksum changed for the file libaio-libaio-0.3.111.tar.gz to a new one, and anyway neither the new one nor the previous one are the one listed on the website in https://releases.pagure.org/libaio/CHECKSUMS Since we just use these checksums for the CI and local development, there is no big security impact but I wonder goes wrong.