remove concurrency group from base

Author: clee2000

.github/workflows/_build-tutorials-base.yml

@@ -14,10 +14,6 @@ on:
         type: number
         default: 0
 
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}-${{ github.event_name == 'workflow_dispatch' }}-${{ github.event_name == 'schedule' }}
-  cancel-in-progress: true
-
 jobs:
   worker:
     name: pytorch_tutorial_build_worker