ci: remove workflow_dispatch for GitHub Pages

Author: ChALkeR

.github/workflows/pages.yml

@@ -4,9 +4,6 @@ on:
   push:
     branches: ["main"]
 
-  # Allows you to run this workflow manually from the Actions tab
-  workflow_dispatch:
-
 # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
 permissions:
   contents: read