ci: don't build our master branch (#1177)

* ci: don't build our master branch

* Add netlify-cli as a dev dependency

* ci: trying a sheltered merge flow for promotions

package.json

@@ -80,6 +80,7 @@
     "jest-junit": "^6.4.0",
     "lerna": "^3.15.0",
     "lint-staged": "^9.0.2",
+    "netlify-cli": "^2.21.0",
     "optimize-css-assets-webpack-plugin": "^5.0.3",
     "postcss-import": "^12.0.1",
     "postcss-loader": "^3.0.0",