update exploration branch

build/azure-pipelines/exploration-build.yml

@@ -31,10 +31,10 @@ steps:
     git config user.email "vscode@microsoft.com"
     git config user.name "VSCode"
 
-    git checkout origin/electron-x.y.z
+    git checkout origin/electron-11.x.y
     git merge origin/master
 
     # Push master branch into exploration branch
-    git push origin HEAD:electron-x.y.z
+    git push origin HEAD:electron-11.x.y
 
   displayName: Sync & Merge Exploration