Merge from vscode 8e0f348413f4f616c23a88ae30030efa85811973 (#6381)

* Merge from vscode 8e0f348413f4f616c23a88ae30030efa85811973

* disable strict null check

build/azure-pipelines/release.yml

@@ -0,0 +1,22 @@
+steps:
+- task: NodeTool@0
+  inputs:
+    versionSpec: "10.x"
+
+- task: geeklearningio.gl-vsts-tasks-yarn.yarn-installer-task.YarnInstaller@2
+  inputs:
+    versionSpec: "1.x"
+
+- task: AzureKeyVault@1
+  displayName: 'Azure Key Vault: Get Secrets'
+  inputs:
+    azureSubscription: 'vscode-builds-subscription'
+    KeyVaultName: vscode
+
+- script: |
+    set -e
+
+    (cd build ; yarn)
+
+    AZURE_DOCUMENTDB_MASTERKEY="$(builds-docdb-key-readwrite)" \
+    node build/azure-pipelines/common/release.js