Remove session keys expiration

Session keys should not expire

https://forum.duniter.org/t/discussion-sur-rotatekeys/11275/3

added C-binary C-doc D-medium P7-nicetohave RN-binary labels

changed title from Auto rotate keys and set keys to Remove session keys expiration

changed the description

assigned to @tuxmain

added S-doing label

mentioned in merge request !175 (merged)

closed

changed milestone to %runtime-600

changed milestone to %runtime-700