Upload build artifact

.github/workflows/test.yml

@@ -86,13 +86,20 @@ jobs:
       #     zpool --version
       #     END
 
+      - name: Build
+        run: |
+          python3 -m zipapp src/jlmkr -p "/usr/bin/env python3" -o jlmkr
+
+      - uses: actions/upload-artifact@v4
+        with:
+          path: jlmkr
+
       # Run multiple commands using the runners shell
       - name: Run the test script
         env:
           PYTHONUNBUFFERED: 1
         run: |
           set -euo pipefail
-          python3 -m zipapp src/jlmkr -p "/usr/bin/env python3" -o jlmkr
           sudo chown 0:0 jlmkr ./test/test-jlmkr
           sudo bash ./test/test-jlmkr
           sudo ./test/test.sh