Beware of DeepSpeed LR schedulers

[gahdritz]

PyTorch Lightning and DeepSpeed LR schedulers don't interact correctly at the moment. Follow the PL issue for updates. In the meantime, use configure_optimizers in train_openfold to add LR scheduling logic.

[jonathanking]

Just commenting for others that may come across this: you need to remove/omit the optimizer and scheduler from the deepspeed config and redefine them in configure_optimizers for this to work.