Fix promotion role for pypi promotion (#7342)

Need to use ``gha_workflow_stage_wheels`` role. This role has access to
pytorch-backup bucket

Author: atalman

.github/workflows/release-pypi.yml

@@ -30,15 +30,15 @@ jobs:
   trigger:
     runs-on: ubuntu-latest
     timeout-minutes: 60
-    environment: promote-env
+    environment: pytorchbot-env
     container:
       image: pytorch/almalinux-builder:cpu
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Configure aws credentials (pytorch account)
         uses: aws-actions/configure-aws-credentials@50ac8dd1e1b10d09dac7b8727528b91bed831ac0 # v3.0.2
         with:
-          role-to-assume: arn:aws:iam::749337293305:role/gha_workflow_promote_wheels
+          role-to-assume: arn:aws:iam::749337293305:role/gha_workflow_stage_wheels
           aws-region: us-east-1
       - name: Copy staged binaries
         shell: bash