Update data-update.yml

Allow to manually running the workflow

See:
* https://docs.github.com/en/actions/managing-workflow-runs/manually-running-a-workflow
* https://docs.github.com/en/actions/reference/events-that-trigger-workflows#workflow_dispatch

.github/workflows/data-update.yml

@@ -1,7 +1,8 @@
 name: "Update searx.data"
 on:
   schedule:
-    - cron: "05 09 * * 5"
+    - cron: "05 06 * * 5"
+  workflow_dispatch:
 
 jobs:
   updateData: