use local repo for self testing

Author: EmilienM

.github/workflows/main.yml

@@ -9,7 +9,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - id: devstack-action
-        uses: EmilienM/devstack-action@v0.1
+        uses: ./
       - name: Upload logs artifacts on failure
         if: failure()
         uses: actions/upload-artifact@v2