renew gpg keys
/etc/apt/trusted.gpg
--------------------
pub rsa2048 2017-09-18 [SC] [expired: 2019-09-18]
E5ED 67E1 9CEC 6139 7DE8 B82A 0CC4 84A6 5954 0A2F
uid [ expired] Pyra Repository <info@openpandora.org>
/etc/apt/trusted.gpg
--------------------
pub rsa2048 2017-09-18 [SC] [expired: 2019-09-18]
E5ED 67E1 9CEC 6139 7DE8 B82A 0CC4 84A6 5954 0A2F
uid [ expired] Pyra Repository <info@openpandora.org>