Add workflow_dispatch trigger to CD workflow for manual runs

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: PastelStorm

.github/workflows/docker-publish.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+  workflow_dispatch:
 
 env:
   DOCKER_REPOSITORY: quay.io/unstructured-io/unstructured-api