Revert "allow manually running npm-publish workflow"

This reverts commit bbf147d.

Author: JoernBerkefeld

.github/workflows/npm-publish.yml

@@ -6,8 +6,6 @@ name: Publish NPM on Release
 on:
     release:
         types: [published]
-    workflow_dispatch:
-        
 
 permissions:
   id-token: write  # Required for OIDC