Replace .exes with the signed ones

Author: fdennis

.github/workflows/windows.yml

@@ -129,6 +129,8 @@ jobs:
         ls -la
         rm 1.zip
         cd ..
+        cp signed/authenticator-helper.exe yubioath-desktop-windows/yubioath-desktop-dennis-windows/helper/authenticator-helper.exe
+        cp signed/authenticator.exe yubioath-desktop-windows/yubioath-desktop-dennis-windows/authenticator.exe
     - name: upload signed artifacts
       uses: actions/upload-artifact@v4
       with: