Invalid gpg public key on Ubuntu repos

Hi,

we have noticed that the key published on https://repos.influxdata.com/influxdb.key does not match the signature on the repos. The problem is on Ubuntu Bionic, Focal repos at least, but I guess the impact is much wider.

ubuntu@ubuntu:~$ wget -qO- https://repos.influxdata.com/influxdb.key | sudo apt-key add -
OK
ubuntu@ubuntu:~$ source /etc/lsb-release
ubuntu@ubuntu:~$ echo "deb https://repos.influxdata.com/${DISTRIB_ID,,} ${DISTRIB_CODENAME} stable" | sudo tee /etc/apt/sources.list.d/influxdb.list
deb https://repos.influxdata.com/ubuntu focal stable
ubuntu@ubuntu:~$ sudo apt update
Hit:1 http://archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease      
Get:3 https://repos.influxdata.com/ubuntu focal InRelease [4736 B]  
Hit:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease    
Hit:5 http://security.ubuntu.com/ubuntu focal-security InRelease
Err:3 https://repos.influxdata.com/ubuntu focal InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 684A14CF2582E0C5
Reading package lists... Done
W: GPG error: https://repos.influxdata.com/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 684A14CF2582E0C5
E: The repository 'https://repos.influxdata.com/ubuntu focal InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
ubuntu@ubuntu:~$

Regards,

Brano Zarnovican