ci: allow the update version and publish workflow to be manually triggered

- Added `workflow_dispatch` to the workflow trigger events to enable the "Run workflow" button in the GitHub Actions UI to manually trigger it.

Author: yCodeTech

.github/workflows/publish-extension.yml

@@ -3,6 +3,7 @@
 on:
   release:
     types: [prereleased, released]
+  workflow_dispatch:
 
 env:
   TAG_NAME: ${{ github.ref_name }}