upgrade dependencies

update dependencies

fix - playground manifest missing machine.noSSH attr

update dependencies

Merge pull request #63 from sagikazarmark/play-start-init-conditions

Play start init conditions

retry on play websocket connection failure

fix - panic on challenge completion due to SSH session closing race

Merge pull request #61 from sagikazarmark/content-free-tier

Content free tier

Merge pull request #56 from sagikazarmark/challenge-no-block

feat: allow detaching from a challenge session

upgrade dependencies