fix the security scan for master branch

.github/workflows/general.security-scan.yaml

@@ -19,8 +19,6 @@ jobs:
     steps:
       - uses: actions/checkout@v2
         with:
-          # TODO remove this ref
-          ref: "staging"
           token: ${{ secrets.BOT_TOKEN }}
       - id: set-dirs # Give it an id to handle to get step outputs in the outputs key above
         run: echo "::set-output name=dir::$({ ls -d .containers/apps/*/ & ls -d .containers/base/*/; } | tr '\n' '\0' | xargs -0 -n 1 basename | jq -R -s -c 'split("\n")[:-1]')"