fix: build context

.github/workflows/main_msal-react-demo-kotahusky.yml

@@ -29,6 +29,11 @@ jobs:
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v2
+      with:
+        context: .  # This uses the current directory (which includes .next after the build) as the context
+        file: ./Dockerfile
+        push: true
+        tags: yourtag
 
     - name: Log in to registry
       uses: docker/login-action@v3