ci: restore Forgejo-compatible Windows dispatch

.github/workflows/build-windows-manual.yml

@@ -1,20 +1,12 @@
 name: Build Windows GLS Team Foundation
 
-# Forgejo activation marker: trigger the first push run after enabling this workflow.
-
 on:
-  push:
-    branches:
-      - main
-    paths:
-      - ".github/workflows/build-windows-manual.yml"
   workflow_dispatch:
     inputs:
       version:
         description: "GLS team installer version"
         required: true
         default: "0.1.7"
-        type: string
 
 env:
   NODE_OPTIONS: --max-old-space-size=4096