remove ref from pipeline-ci

Signed-off-by: Tyler Titsworth <tyler.titsworth@intel.com>

Author: Tyler Titsworth

.github/workflows/weekly-test.yaml

@@ -50,7 +50,6 @@ jobs:
     uses: intel/ai-containers/.github/workflows/container-ci.yaml@main
     with:
       group_dir: ${{ matrix.group }}
-      ref: main
     secrets: inherit
   # helm-ci:
   #   runs-on: kubectl