Add CodeSandbox CI Config (#17175)

* Add CodeSandbox CI Config

* Add default sandbox to build

* Make build more efficient and add scheduler

* Force build

* Add scheduler image

* Add scheduler/tracing to the build

* Force another build

Author: CompuIves

.codesandbox/ci.json

@@ -0,0 +1,10 @@
+{
+  "packages": ["packages/react", "packages/react-dom", "packages/scheduler"],
+  "buildCommand": "build --type=NODE react/index,react-dom/index,scheduler/index,scheduler/tracing",
+  "publishDirectory": {
+    "react": "build/node_modules/react",
+    "react-dom": "build/node_modules/react-dom",
+    "scheduler": "build/node_modules/scheduler"
+  },
+  "sandboxes": ["new"]
+}