debian-archive-keyring: update to 2025.1

debian-archive-keyring: update to 2025.1

Changes since 2023.4:
 * Add automatic signing keys for trixie
 * Add Debian Stable Release Key (13/trixie) (ID: 762F67A0B2C39DE4)
 * Clean up maintscript removal of ancient archive certificates
 * Get rid of team-members/ and signature verification
 * Remove buster keys
 * Rename keyrings from .gpg to .pgp
 * Use OpenPGP instead of GnuPG when referring to the specification

Link: https://salsa.debian.org/release-team/debian-archive-keyring/-/blob/debian/2025.1/debian/changelog
Signed-off-by: Daniel Golle <redacted>