test copying built files to AWS

Author: jpolitz

.github/workflows/makefile.yml

@@ -112,4 +112,8 @@ jobs:
         else
           echo "Running all tests"
           npm run mocha
-        fi
+        fi
+
+    - name: Copy cpo-main and related JS to S3
+      run: |
+        aws s3 sync ./build/web/js s3://pyret-horizon/horizon-action-test --recursive --acl public-read