fix: stabilisiere CI-Workflow und passe JAR-Namensmuster an

Signed-off-by: StefanMoCoAt <stefan.mo.co@gmail.com>

.gitea/workflows/feature-build.yml

@@ -26,14 +26,16 @@ jobs:
 
       - name: Setup Conveyor
         run: |
-          curl -s https://conveyor.hydraulic.dev/install.sh | sh
+          curl -L https://conveyor.hydraulic.dev/install.sh -o install-conveyor.sh
+          chmod +x install-conveyor.sh
+          ./install-conveyor.sh
           echo "$HOME/.conveyor/bin" >> $GITHUB_PATH
 
       - name: Windows .msi mit Conveyor bauen
         run: |
           # Conveyor baut das MSI direkt auf Linux
           # Wir nutzen --unpinned, um keine festen Versionen zu erzwingen
-          conveyor make windows-msi
+          $HOME/.conveyor/bin/conveyor make windows-msi
 
       - name: .msi Artefakt hochladen
         uses: actions/upload-artifact@v4