test: pin explicit --filename to avoid branch-name path bug

.gitea/workflows/swcli-probe.yml

@@ -17,10 +17,9 @@ jobs:
           tar -xzf /tmp/shopware-cli.tar.gz -C /tmp/swcli-extract
           cp /tmp/swcli-extract/shopware-cli /usr/local/bin/shopware-cli
           chmod +x /usr/local/bin/shopware-cli
-          shopware-cli --version
 
-      - name: Package extension (corrected flag)
+      - name: Package extension with explicit filename
         run: |
-          shopware-cli extension package . --output-directory .build
+          shopware-cli extension package . --output-directory .build --filename AeonDumpManager-v0.0.1-test.zip
           echo "=== .build contents ==="
           find .build -maxdepth 3