ContinueOnError for nginx

Author: wtgodbe

.azure/pipelines/ci.yml

@@ -666,6 +666,7 @@ stages:
         beforeBuild:
         - bash: "./eng/scripts/install-nginx-mac.sh"
           displayName: Installing Nginx
+          continueOnError: true
         artifacts:
         - name: MacOS_Test_Logs
           path: artifacts/log/