Added v16 to run at midnight (#18785)

Co-authored-by: Nhu Dinh <150406148+nhudinh0309@users.noreply.github.com>

build/nightly-E2E-test-pipelines.yml

@@ -10,6 +10,7 @@ schedules:
       include:
         - v14/dev
         - v15/dev
+        - v16/dev
 
 variables:
   nodeVersion: 20
@@ -428,7 +429,7 @@ stages:
             inputs:
               targetPath: $(Build.ArtifactStagingDirectory)
               artifact: "Acceptance Test Results - $(Agent.JobName) - Attempt #$(System.JobAttempt)"
-          
+
           # Publish test results
           - task: PublishTestResults@2
             displayName: "Publish test results"