Improve Docs publish.yml workflow dispatch (#17039)

.github/workflows/docs.yml

@@ -20,6 +20,11 @@ on:
   pull_request:
     branches: [main]
   workflow_dispatch:
+    inputs:
+      publish_docs:
+        description: 'Publish live to https://docs.ultralytics.com'
+        default: 'true'
+        type: boolean
 
 jobs:
   Docs:
@@ -80,7 +85,7 @@ jobs:
             echo "No changes to commit"
           fi
       - name: Publish Docs to https://docs.ultralytics.com
-        if: github.event_name == 'push'
+        if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && github.event.inputs.publish_docs == 'true')
         run: |
           git clone https://github.com/ultralytics/docs.git docs-repo
           cd docs-repo