v0.3.3 — bugfix release

Changed

• max_steps is automatically inferred from the tuning config if a number of lr decay steps is
  given
• max_epochs is now optional (if both max_steps and max_epochs are unset and no lr schedule is
  provided, Lightning's default will be used)
• find_unused_parameters is now disabled in DDP mode, unless in profile mode
• Bumped lightning to 1.4.x

Fixed

• Linear decay now properly takes the warmup period into account