2.5.0rc8: Bug fixes

What's Changed

• Fix hierarchical stats documentation by @apatole in #2882
• Update fedbn example by @ZiyueXu77 in #2883
• fix path due to simulator output structure changes by @chesterxgchen in #2885
• Add note on installing nvflare in requirements by @nvkevlu in #2884
• Fix sbs notebooks by @SYangster in #2887
• Re-factor hello-numpy-cse example by @YuanTingHsieh in #2880
• Update CrossSiteEval by @YuanTingHsieh in #2886
• Add printing of tb logdir by @YuanTingHsieh in #2888
• Update getting_started cifar notebook by @ZiyueXu77 in #2889
• Deprecate decorator pattern by @YuanTingHsieh in #2891
• Added instructions to run horizontal secure XGBoost in simulator by @nvidianz in #2890

Full Changelog: 2.5.0rc7...2.5.0rc8