chore: build @vfx-js/core before VRT

Author: fand

.github/workflows/vrt.yml

@@ -35,6 +35,8 @@ jobs:
           cache-dependency-path: "**/package-lock.json"
       - name: Install dependencies
         run: npm ci
+      - name: Build @vfx-js/core
+        run: npm --workspace @vfx-js/core run build
       - name: Publish to Chromatic
         id: chromatic
         uses: chromaui/action@latest