How to import public gpg manjaro-keyring?

[linub]

i saw this:

[Stable Update] 2021-09-16 - Kernels, Steam, Pipewire, Firefox, Thunderbird, Pamac, Pacman

Known issues and solutions This is a wiki post; please edit as necessary. Please, consider subscribing to the Stable Updates Announcements RSS feed Please don’t post to say everything was great on my side or yes, I have the same error but leave the space for people having issues, or even better: for people having solutions! Use instead to let us know you’re suffering from the same so we can respond to the highest impacted issues first! …

but i have no idea if that’s the solution for you.