fix nsis arguments (from switching to linux)

.github/workflows/release.yml

@@ -3,10 +3,11 @@ name: Release Build
 on:
   release:
     types: [ created ]
+  workflow_dispatch:
 
 jobs:
   build:
-    runs-on: windows-latest
+    runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v2
@@ -35,22 +36,37 @@ jobs:
           cd packaging
           chmod +x package.sh
           echo "Building JAR and ZIP for version: ${{ env.VERSION }}"
-        ./package.sh -windows
+          ./package.sh
           echo "Created artifacts:"
           ls -la common/ATCS.jar
           ls -la ATCS_${{ env.VERSION }}.zip
 
-    - name: Install NSIS
+      - name: 'Install makensis (apt)'
+        run: sudo apt update && sudo apt install -y nsis nsis-pluginapi
+        continue-on-error: true
+
+      - name: Create Windows-Installer with NSIS
         uses: joncloud/makensis-action@v4
         with:
           script-file: packaging/Windows/ATCS_Installer.nsi
-        arguments: /DVERSION="${{ env.VERSION }}"
+          arguments: -DVERSION="${{ env.VERSION }}"
+        continue-on-error: true
+
+      - name: Determine Upload Files
+        id: check_files_to_upload
+        shell: bash
+        run: |
+          FILES="./packaging/ATCS_${VERSION}.zip"
+          if [ -f "./packaging/ATCS_${VERSION}_Setup.exe" ]; then
+            FILES="$FILES ./packaging/ATCS_${VERSION}_Setup.exe"
+          else
+            echo "::error::exe-installer created by NSIS was not found; only ZIP will be uploaded."
+          fi
+          echo "files=$FILES" >> $GITHUB_OUTPUT
 
       - name: Upload Release Assets
         uses: softprops/action-gh-release@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-        files: |
-          ./packaging/ATCS_${{ env.VERSION }}.zip
-          ./packaging/ATCS_${{ env.VERSION }}_Setup.exe
+          files: ${{ steps.check_files_to_upload.outputs.files }}