2.7.2rc3: Bug fixes

What's Changed

• [2.7] Cherry pick simplify CSE recipe (#3942) by @nvkevlu in #3957
• [2.7] Cifar10 tf central training logs path by @holgerroth in #3955
• [2.7] BioNeMo Recipes by @holgerroth in #3943
• [2.7] Apply same llm updates to 2.7 by @ZiyueXu77 in #3956
• [2.7] Apply same GNN updates to 2.7 by @ZiyueXu77 in #3966
• [2.7] cherry pick fix for NumpyFedAvgRecipe experiment tracking by @nvkevlu in #3970
• [2.7] Remove step-by-step by @ZiyueXu77 in #3972
• [2.7] Hello Differential Privacy by @holgerroth in #3961
• [2.7] expose key metric in recipe by @ZiyueXu77 in #3973
• [2.7] Update key_metric over all examples by @ZiyueXu77 in #3981
• [2.7] Raise exception on FOBS errors by @nvidianz in #3969

Full Changelog: 2.7.2rc2...2.7.2rc3