🚀 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

.github/workflows/deploy-docs.yml

@@ -1,29 +0,0 @@
-name: Build and Deploy to Netlify
-on:
-  push:
-  pull_request:
-    types: [opened, synchronize]
-jobs:
-  build:
-    runs-on: ubuntu-18.04
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python
-        uses: actions/setup-python@v1
-        with:
-          python-version: "3.7"
-      - name: Install Flit
-        run: python3.7 -m pip install flit
-      - name: Install docs extras
-        run: python3.7 -m flit install --extras doc
-      - name: Build Docs
-        run: python3.7 ./scripts/docs.py build-all
-      - name: Deploy to Netlify
-        uses: nwtgck/actions-netlify@v1.0.3
-        with:
-          publish-dir: './site'
-          production-branch: master
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-        env:
-          NETLIFY_AUTH_TOKEN: ${{ secrets.NETLIFY_AUTH_TOKEN }}
-          NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}