Add CFSClean enforcement (#48061)

Author: chidozieononiwu

eng/pipelines/templates/stages/1es-redirect.yml

@@ -36,7 +36,7 @@ extends:
         - 1ES.PT.Tag-refs/tags/canary
     settings:
       skipBuildTagsForGitHubPullRequests: true
-      networkIsolationPolicy: Permissive
+      networkIsolationPolicy: Permissive, CFSClean
     ${{ if ne(variables['Build.DefinitionName'], 'python - core') }}:
       featureFlags:
         autoBaseline: false