Switched to time.time() as time.perf_counter() is not supposed to be
  persisted and checked again after long (>1min) periods of time
- Fixed oob not being set to True when a player was bailed out
- Fixed cosmetic issue when player_time is 0 (should be checked first)
- Added a unique_id for !heist play, to fix a small issue where if a player started a heist, and then
    immediately did !heist play again, he would be added to his own
    heist as if he was a crew member
- Added f-strings everywhere to make code more readable
- Fixed bug on vaulter_updater (it was trying to access the key which is
  a string as if it was the dictionary)