Use nodejs-16 for docs builds (#106312)
As node-12 EOLed long time ago and not available for Ubuntu-22.04 (Discovered while working on bionic deprecation).
Remove artificial constraint on gcc-10 downgrade (and some in-pace patching) for Jammy, as CUDA-11.8+ works perfectly fine with gcc-11.
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### <samp>🤖 Generated by Copilot at 6367120</samp>
> _`nodejs` version_
> _upgraded for security_
> _autumn leaves fall fast_
Pull Request resolved: https://github.com/pytorch/pytorch/pull/106312
Approved by: https://github.com/DanilBaibak, https://github.com/albanD, https://github.com/atalman
