[musescore] the current package has been signed by an invalid PGP signature
error: musescore: signature from "bill-auger <email@example.com>" is unknown trust
:: File /var/cache/pacman/pkg/musescore-3.2.3-1.parabola1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] Y
error: failed to commit transaction (invalid or corrupted package (PGP signature))
Errors occurred, no packages were upgraded.