ContinueOnError when installing nginx

Author: wtgodbe

.azure/pipelines/ci.yml

@@ -633,6 +633,7 @@ stages:
       beforeBuild:
       - bash: "./eng/scripts/install-nginx-mac.sh"
         displayName: Installing Nginx
+        continueOnError: true
       afterBuild:
       - bash: ./build.sh --ci --pack --no-build --no-restore --no-build-deps "/bl:artifacts/log/packages.pack.binlog"
         displayName: Pack Packages (for Template tests)