Fix #83241: torch.nn.TripletMarginLoss allowed margin less or equal to 0 (#121978)
Documentation states that the parameter margin of torch.nn.TripletMarginLoss is greater than 0, however any value was being accepted. Also fixed torch.nn.TripletMarginWithDistanceLoss which had the same problem. Added error test input for the new ValueError.
Fixes #83241
Pull Request resolved: https://github.com/pytorch/pytorch/pull/121978
Approved by: https://github.com/mikaylagawarecki
