Update yml to include pool for single task (#16179) (#16181)

Co-authored-by: Rohit Batra <[email protected]>

Author: aasim

azure-pipelines.yml

@@ -105,6 +105,8 @@ jobs:
 - job: buildSingle
   displayName: Build single task
   condition: and(succeeded(), variables.task)
+  pool:
+    vmImage: windows-2022
   steps:
   - template: ci/build-single-steps.yml