[bugfix] Do not abort saving if the OTP counter is aborted

[dominikschulz]

Fixes #2763

[AnomalRoil]

I think this should fix the problem.

Thoughts:

• in the case reported in the issue, skip is going to be true because the --pasword flag is being passed to the OTP command, and so it would make the OTP function return causing its defered cancel() to be run, thus cancelling the queued gitCommitAndPush from here:
  

  gopass/internal/store/leaf/write.go

  Lines 69 to 73 in b2b61b2

  	// try to enqueue this task, if the queue is not available
  	// it will return the task and we will execute it inline
  	t := queue.GetQueue(ctx).Add(func(_ context.Context) (context.Context, error) {
  	return nil, s.gitCommitAndPush(ctx, name)
  	})

  
  because we're enqueuing the gitCommitAndPush and the OTP function finishes before the gitCommitAndPush queued operation has a chance to finish and sadly the context it's getting is the one that's cancelled.

So yeah, LGTM.