ci(docker): when triggered by test workflow, run only if it succeeded

Author: lorenzocorallo

.github/workflows/docker.yml

@@ -10,6 +10,7 @@ on:
 jobs:
   build:
     name: Build
+    if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4