ci: update WEB_EXT_CHANNEL to unlisted in publish workflow

Author: phuwit

.github/workflows/publish.yml

@@ -66,9 +66,9 @@ jobs:
         env:
           WEB_EXT_API_KEY: ${{ secrets.WEB_EXT_API_KEY }}
           WEB_EXT_API_SECRET: ${{ secrets.WEB_EXT_API_SECRET }}
-          WEB_EXT_CHANNEL: listed
+          WEB_EXT_CHANNEL: unlisted
           WEB_EXT_SOURCE_DIR: dist/
-          WEB_EXT_API_UPLOAD_SOURCE_CODE: temp/source.zip
+          WEB_EXT_API_UPLOAD_SOURCE_CODE: temp/source.zip 
 
 
       - name: Upload build artifacts