fix(session-keys): honor expiry == 0 as never-expires sentinel#70

Ridwannurudeen wants to merge 1 commit intoSeismicSystems:mainSeismicSystems/seismic:mainfrom

Ridwannurudeen:fix/66-expiry-zero-never-expiresRidwannurudeen/seismic:fix/66-expiry-zero-never-expiresCopy head branch name to clipboard