Fix Linux build workflow paths for Nuitka output and zipit.py

Author: openhands-agent

.github/workflows/build_linux.yaml

@@ -34,13 +34,13 @@ jobs:
           pip install nuitka argparse requests
 
       - name: Build with Nuitka
-        run: nuitka underbridge.py
+        run: nuitka --output-dir dist/underbridge_lin underbridge.py
 
       - name: List output files
         run: ls dist/
 
       - name: Zip the output
-        run: python zipit.py underbridge_lin underbridge-light-linux.zip
+        run: python zipit.py dist/underbridge_lin underbridge-light-linux.zip
 
       - name: Create GitHub Release and Upload Asset
         uses: softprops/action-gh-release@v1