Removing branch prefix for artifact tag

Internal script not changed immediately hence keeping artifact part same as current.
Also once internal script logic implemented to handle reading tags from .env files directly, will no longer need artifacts.

.github/workflows/image_build_push.yml

@@ -95,11 +95,11 @@ jobs:
     - name: Create artifact text files
       run: |
         if [ "${{ github.event_name }}" == "push" ]; then
-          echo ${GITHUB_REF##*/}_${{ steps.date.outputs.date }} > frontend_tag_file.txt
+          echo ${{ steps.date.outputs.date }} > frontend_tag_file.txt
         else
           echo ${{ steps.set-tags.outputs.PUBLIC_DASH_FRONTEND_IMAGE_TAG }} > frontend_tag_file.txt
         fi
-        echo ${GITHUB_REF##*/}_${{ steps.date.outputs.date }} > notebook_tag_file.txt
+        echo ${{ steps.date.outputs.date }} > notebook_tag_file.txt
         echo "Created tag text files"
 
     - name: Upload Frontend Tag Artifact