Restore automatic gh-pages updates

[mathiasbynens]

It’s been a while since the gh-pages branch was updated:

• https://github.com/ChromeDevTools/devtools-protocol/tree/gh-pages
• https://chromedevtools.github.io/devtools-protocol/tot/

It’s probably a matter of migrating scripts/update-n-publish-docs.sh to work on GitHub Actions. The current setup is a little complicated because it involves the separate https://github.com/ChromeDevTools/debugger-protocol-viewer repository.

[mathiasbynens]

I’ve manually updated the gh-pages branch for now: https://github.com/ChromeDevTools/devtools-protocol/commit/3f245fd5ad20871e0456246eb4fbebf716796dc4

[mathiasbynens]

After a bunch of trial-and-error, we’ve got something that works! The final commit that did it was c9c207e583264058326792210d1b29a95109beac.