This is already out of scope for the bug report, but still leaving a note here that I filed https://salsa.debian.org/debian-keyring/website/-/merge_requests/17 in an effort to help others avoid having keyring update attempts fail.
- Bug#1140801: bookworm-pu: package xz-utils 5.4.1-2+deb1... Otto Kekäläinen
- Bug#1140801: Acknowledgement (bookworm-pu: package... Otto Kekäläinen
- Bug#1140801: Acknowledgement (bookworm-pu: pac... Otto Kekäläinen
- Bug#1140801: Acknowledgement (bookworm-pu:... Adrian Bunk
- Bug#1140801: Acknowledgement (bookworm... Otto Kekäläinen
- Bug#1140801: Acknowledgement (boo... Adrian Bunk
- Bug#1140801: Acknowledgement ... Otto Kekäläinen
- Bug#1140801: Acknowledgement (boo... Otto Kekäläinen
- Bug#1140801: Acknowledgement ... Jonathan Wiltshire
- Bug#1140801: Acknowledgement ... Otto Kekäläinen
- Bug#1140801: Acknowledgement ... Adrian Bunk
- Bug#1140801: Acknowledgem... Otto Kekäläinen
- Bug#1140801: Acknowledgem... Otto Kekäläinen
- Bug#1140702: Bug#1140801:... Jonas Smedegaard
- Bug#1140801: xz-utils 5.4.1-1+deb12u1 flagged for ... Jonathan Wiltshire

