{CI} Skip history check in LTS (#30853)

Author: bebound

azure-pipelines.yml

@@ -1056,7 +1056,7 @@ jobs:
 
 - job: CheckHeaders
   displayName: "Check License, History, and DocMap"
-
+  condition: and(not(contains(variables['Build.SourceBranch'], 'lts')), not(contains(variables['System.PullRequest.TargetBranch'], 'lts')))
   pool:
     name: ${{ variables.ubuntu_pool }}
   steps: