2.7.0rc8: Bug fixes

What's Changed

• FedStats: Improve error messages by @holgerroth in #3770
• Fix Conftest.py by @chesterxgchen in #3771
• Remove production board text [skip ci] by @YuanTingHsieh in #3772
• Add missing init in tf recipes by @YuanTingHsieh in #3773
• Hello-word documentation update [skip ci] by @chesterxgchen in #3778
• Fix colab commands in hello-pt by @holgerroth in #3781
• Lower the log severity on timeout. No change in logic. by @IsaacYangSLA in #3782
• Misc Notebook updates by @chesterxgchen in #3777
• Force new token generation when check a new job by @YuanTingHsieh in #3787
• Make admin server timeout configurable by @YuanTingHsieh in #3786
• Do not generate start_all.sh and use async grpc by default by @nvidianz in #3783
• [BioNeMo] Use decomposer register widget by @holgerroth in #3784
• Include a section describing how to build KBS docker images [skip ci] by @IsaacYangSLA in #3785
• Fixed a certificate issue with newer OpenSSL by @nvidianz in #3775

Full Changelog: 2.7.0rc7...2.7.0rc8