Publish public part of signing key to verify downloads

[MartinNowak]

Would be nice to verify the provided GPG signature tf-summarize_SHA256SUMS.sig but I can't seem to find the public key.

$ gpg --verify tf-summarize_SHA256SUMS.sig
gpg: assuming signed data in 'tf-summarize_SHA256SUMS'
gpg: Signature made So 22 Okt 2023 18:52:09 CEST
gpg:                using RSA key 810C11685E2C731839DD114953FF49669670DBD6
gpg: Can't check signature: No public key

[sbkg0002]

Any updates on this?