I am still getting the same error message when running sudo pacman -Sy endeavouros-keyring
When I get the option to delete the corrupted file I answer Y, and I also have removed it with sudo rm -f path/to/file
I can update the arch keyring but that does not change anything.
eos-update --yay does not work either
When running sudo pacman -Sy endeavouros-keyring after manually removing the corrupted file I get an error saying that the EndeavourOS signature is unknown trust, and sudo pacman-key --lsign-key EndeavourOS does not fix it.
Solved with this