Sh runner (#297)

* set self-hosted runner
* set GH runner for pylint
* fix upload to storage
* add workspace cleanup for CI

.github/workflows/ci.yml

@@ -10,6 +10,9 @@ jobs:
   build:
     runs-on: [self-hosted]
     steps:
+      - name: Cleanup workspace
+        uses: AutoModality/action-clean@v1
+
       - name: Checkout code
         uses: actions/checkout@v2
         with: