Add Deployment hook (#1430)

* test deployment hook

* remove test branch

* update heroku review deployment

.github/workflows/deploy.yml

@@ -0,0 +1,13 @@
+name: Deploy via single cell infra repo
+
+on:
+  push:
+    branches: master
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: repository dispatch
+        run: |
+          curl -XPOST -u mdunitz:${{secrets.SCINFRA_TOKEN}} -H "Accept: application/vnd.github.everest-preview+json"  -H "Content-Type: application/json" https://api.github.com/repos/chanzuckerberg/single-cell-infra/dispatches --data '{"event_type": "cellxgene-hook"}'

app.json

@@ -10,7 +10,11 @@
     "transcriptomics",
     "dataviz"
   ],
-  "stack": "container",
+  "buildpacks": [
+    "heroku/nodejs",
+    "heroku/python"
+  ],
+  "stack": "heroku-18",
   "env": {
     "DATASET": {
       "description": "Link to dataset",