upload robot test results

.github/workflows/main-build-test.yml

@@ -9,7 +9,7 @@ on:
       - main
 
 jobs:
-  build-and-publish:
+  build-and-test:
     runs-on: ubuntu-latest
 
     steps:
@@ -25,3 +25,9 @@ jobs:
 
       - run: ./builder/build_container
       - run: ./tests/run_tests
+
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: robot-test-log
+          path: tests/log.html