Flatpak package is out-of-date

[ebkalderon]

Hello there! Since the 1.6.4 release that occurred last week, it seems that the equivalent FlatHub repo (com.github.eneshecan.WhatsAppForLinux) hasn't been updated since 1.6.3 (about 2 months ago). I'm not sure whether this package is receives first-party maintenance, so I'd love it if someone could confirm, but I wanted to raise awareness of this issue just the same. Thanks for creating and maintaining this terrific app. ❤️