Update approver for EsrpRelease (#30628)

If we have an email from who requested the build we should use that for
both owners and approvers.

eng/pipelines/templates/steps/npm-release-task.yml

@@ -22,7 +22,7 @@ steps:
         ContentType: 'npm'
         FolderLocation: ${{parameters.PathToArtifacts}}
         Owners: ${{ coalesce(variables['Build.RequestedForEmail'], 'azuresdk@microsoft.com') }}
-        Approvers: 'azuresdk@microsoft.com'
+        Approvers: ${{ coalesce(variables['Build.RequestedForEmail'], 'azuresdk@microsoft.com') }}
         ServiceEndpointUrl: 'https://api.esrp.microsoft.com'
         MainPublisher: 'ESRPRELPACMANTEST'
         DomainTenantId: '72f988bf-86f1-41af-91ab-2d7cd011db47'