v4.4.0

[notgull]

• Ensure that the allocation doesn't exceed isize::MAX (Ensure that allocation doesn't exceed isize::MAX #32)
• Add FallibleTask::is_finished() (Add FallibleTask::is_finished() #34)
• Add a metadata generic parameter to tasks (Add metadata to tasks #33)
• Add panic propagation to tasks (Add panic propagation #37)
• Add a way to tell if the task was woken while running from the schedule function (Add woken_while_running as another argument to the scheduling function #42)