removing on push deploy-book.yml

.github/workflows/deploy-book.yml

@@ -2,8 +2,9 @@ name: deploy-book
 
 # Run this when the master or main branch changes
 on:
-  push:
-    branches:
+  workflow_dispatch:
+  # push:
+    # branches:
     # - main
     # If your git repository has the Jupyter Book within some-subfolder next to
     # unrelated files, you can make this run only if a file within that specific