[release/10.0] Use correct name for the AZL3 build image (#16511)

Co-authored-by: Alexander Köplinger <alex.koeplinger@outlook.com>

Author: github-actions[bot]

eng/common/core-templates/job/source-build.yml

@@ -60,19 +60,19 @@ jobs:
       pool:
         ${{ if eq(variables['System.TeamProject'], 'public') }}:
           name: $[replace(replace(eq(contains(coalesce(variables['System.PullRequest.TargetBranch'], variables['Build.SourceBranch'], 'refs/heads/main'), 'release'), 'true'), True, 'NetCore-Svc-Public' ), False, 'NetCore-Public')]
-          demands: ImageOverride -equals Azure-Linux-3-Amd64-Public
+          demands: ImageOverride -equals build.azurelinux.3.amd64.open
         ${{ if eq(variables['System.TeamProject'], 'internal') }}:
           name: $[replace(replace(eq(contains(coalesce(variables['System.PullRequest.TargetBranch'], variables['Build.SourceBranch'], 'refs/heads/main'), 'release'), 'true'), True, 'NetCore1ESPool-Svc-Internal'), False, 'NetCore1ESPool-Internal')]
-          image: Azure-Linux-3-Amd64
+          image: build.azurelinux.3.amd64
           os: linux
     ${{ else }}:
       pool:
         ${{ if eq(variables['System.TeamProject'], 'public') }}:
           name: $[replace(replace(eq(contains(coalesce(variables['System.PullRequest.TargetBranch'], variables['Build.SourceBranch'], 'refs/heads/main'), 'release'), 'true'), True, 'NetCore-Svc-Public' ), False, 'NetCore-Public')]
-          demands: ImageOverride -equals Azure-Linux-3-Amd64-Public
+          demands: ImageOverride -equals build.azurelinux.3.amd64.open
         ${{ if eq(variables['System.TeamProject'], 'internal') }}:
           name: $[replace(replace(eq(contains(coalesce(variables['System.PullRequest.TargetBranch'], variables['Build.SourceBranch'], 'refs/heads/main'), 'release'), 'true'), True, 'NetCore1ESPool-Svc-Internal'), False, 'NetCore1ESPool-Internal')]
-          demands: ImageOverride -equals Azure-Linux-3-Amd64
+          demands: ImageOverride -equals build.azurelinux.3.amd64
   ${{ if ne(parameters.platform.pool, '') }}:
     pool: ${{ parameters.platform.pool }}