Fix release workflow

"workflow_call" is not a event name

.github/workflows/win-exe.yml

@@ -21,6 +21,9 @@ on:
         description: 'Sign binaries'
         default: true
         type: boolean
+      upload-to-draft:
+        type: boolean
+        default: true
     outputs:
       sha256-msi:
         description: "SHA256 sum of the x64 msi"
@@ -448,7 +451,7 @@ jobs:
 
   publish:
     name: Publish installers to the github release
-    if: github.event_name == 'workflow_call'
+    if: inputs.upload-to-draft
     runs-on: ubuntu-latest
     needs: [ build-msi, build-exe ]
     steps: