ci: fix conditional target for Fluxer notifications in deploy_dev workflow

Author: BibaltiK

.github/workflows/deploy_dev.yml

@@ -136,7 +136,7 @@ jobs:
 
       # Schritt für Fluxer.app-Benachrichtigungen (mit curl, da Fluxer ein anderes Format erwartet!)
       - name: Send Discord Notification
-        if: matrix.target == 'discord'
+        if: matrix.target == 'fluxer'
         uses: rjstone/discord-webhook-notify@v1.0.4
         with:
           severity: ${{ steps.status_check.outputs.status == 'success' && 'info' || 'error' }}