🚀 Preview docs for external PRs (#1738)

🚀 Preview docs for external PRs (#1738)

* 🍱 Save docs zip when building docs

* 🙈 Add docs.zip artifact to .gitignore

* 🚀 Update deploy artifact name

* ♻️ Upload artifact directory

* ✨ Add WIP trigger docs preview

* ♻️ Update trigger docs preview

* 👷 Update env vars for docs preview

* 👷 Update PR extraction

* 👷 Try to show GitHub event

* 💚 Try to see if GitHub context templates is causing the problem

* 💚 Try to debug context GitHub event

* 🔊 Debug GitHub event context

* 👷 Update debugging action

* 👷 Update debug

* 👷 Update Action

* ♻️ Update script to trigger docs preview

* ⚡️ Try to use Zip again to improve speed

* 🔧 Update zip scripts

* ✨ Add preview docs on event

* 🚀 Trigger deploy preview on PRs

* 🐛 Fix trigger script env vars