ci: add workflow_dispatch trigger to npm-publish workflow

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

.github/workflows/npm-publish.yml

@@ -6,6 +6,7 @@ name: Publish to npm
 on:
   release:
     types: [published]
+  workflow_dispatch:
 
 permissions:
   contents: read