pacman – fix signatures

error: perl: signature from "Frederik Schwan frederik.schwan@linux.com" is marginal trust
:: File /var/cache/pacman/pkg/perl-5.36.0-3-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: netpbm: signature from "Antonio Rojas arojas@archlinux.org" is marginal trust
:: File /var/cache/pacman/pkg/netpbm-10.73.42-2-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: gts: signature from "Felix Yan felixonmars@archlinux.org" is marginal trust
:: File /var/cache/pacman/pkg/gts-0.7.6.121130-2-x86_64.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
error: gsfonts: signature from "David Runge dvzrv@archlinux.org" is marginal trust
:: File /var/cache/pacman/pkg/gsfonts-20200910-2-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n]
RESET
pacman-key --init; pacman-key --populate archlinux