apt-get update fails in latest (linux/arm/v7)

[Tockra]

The apt-get update call fails with an signature error.

W: GPG error: http://deb.debian.org/debian bullseye InRelease: At least one invalid signature was encountered.
E: The repository 'http://deb.debian.org/debian bullseye InRelease' is not signed.
W: GPG error: http://deb.debian.org/debian-security bullseye-security InRelease: At least one invalid signature was encountered.
E: The repository 'http://deb.debian.org/debian-security bullseye-security InRelease' is not signed.
W: GPG error: http://deb.debian.org/debian bullseye-updates InRelease: At least one invalid signature was encountered.
E: The repository 'http://deb.debian.org/debian bullseye-updates InRelease' is not signed.
The command '/bin/sh -c apt-get update && apt-get install -y pkg-config libssl-dev build-essential cmake' returned a non-zero code: 100

[siketyan]

Experiencing this with linux/arm64 image too