Update .vsts-ci.yml for Azure Pipelines (#631)

build/.vsts-ci.yml

@@ -523,6 +523,8 @@ jobs:
       PROVISIONING_CONNECTION_STRING_INVALIDCERT: $(PROVISIONING-CONNECTION-STRING-INVALIDCERT)
 - job: OSX
   displayName: OSX
+  variables:
+    CodeQL.Enabled: false
   pool:
     name: OSX
   steps:
@@ -560,6 +562,8 @@ jobs:
     condition: always()
 - job: xcodenative
   displayName: XCode Native
+  variables:
+    CodeQL.Enabled: false
   pool:
     name: OSX
   steps: