fixed github actions download artefact

.github/workflows/e2e.yml

@@ -42,12 +42,14 @@ jobs:
     needs: buildimage
     steps:
     - name: Download docker image artefact
-      uses: actions/upload-artifact@v1
+      uses: actions/download-artifact@v1
       with:
         name: ${{ env.ARTEFACT_NAME }}
     - name: Load artefact as docker image
       run: |
         docker load -i ${ARTEFACT_NAME}/${DOCKER_SAVE_FILENAME}
+    # delete artefact, track issue: https://github.community/t5/GitHub-Actions/Delete-artifacts/td-p/38188
+    # - name: Remove artefact 
     - uses: actions/checkout@v2
       with:
         fetch-depth: 2