checkout code for publish action (#4)

Author: jeremyqa

.github/workflows/release.yml

@@ -10,5 +10,8 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
+      - name: "Checkout code"
+        uses: actions/checkout@v2
+
       - name: "Release magic"
         uses: ./.github/actions/release_to_prod