rabbitmq.com apt repo was re-signed with the new release key

[michaelklishin]

Heads-up, rabbitmq.com apt repo was re-signed with the new release key.

You can learn more on rabbitmq.com.

[naumchenko]

I suspect this causing:

W: GPG error: http://www.rabbitmq.com/debian testing InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6B73A36E6026DFCA