Coral elease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details

 W: https://packages.cloud.google.com/apt/dists/coral-edgetpu-stable/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.

fixed

wget -O- https://packages.cloud.google.com/apt/doc/apt-key.gpg | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/coral-edgetpu.gpg