[ci] move cw publish step to github hosted runner (#2978)

.github/workflows/publish-job-success.yml

@@ -8,14 +8,19 @@ on:
  branches:
  - master
 
+permissions:
+ id-token: write
+ contents: read
+
 jobs:
  publish-job-success-to-cloudwatch:
  if: ${{ github.event.workflow_run.event == 'schedule' }}
- runs-on: [ self-hosted, scheduler ]
+ runs-on: ubuntu-latest
  steps:
  - name: Configure AWS Credentials
  uses: aws-actions/configure-aws-credentials@v4
  with:
+ role-to-assume: arn:aws:iam::185921645874:role/djl-github-cloudwatch-ci-metrics
  aws-region: us-west-2
  - name: Publish Job Success Metric
  env: