ci: transport up upload_url

Author: georgik

.github/workflows/build.yml

@@ -9,6 +9,8 @@ on:
 jobs:
   create-release:
     runs-on: ubuntu-22.04
+    outputs:
+      upload_url: ${{ steps.create_release.outputs.upload_url }}
     steps:
       - name: Checkout
         uses: actions/checkout@v3