add comment about KS3

Author: Steve Lee (POWERSHELL HE/HIM) (from Dev Box)

.pipelines/DSC-Official.yml

@@ -33,9 +33,11 @@ extends:
   template: v2/OneBranch.Official.CrossPlat.yml@onebranchTemplates
   parameters:
     featureFlags:
-      WindowsHostVersion:
+      WindowsHostVersion: 
         Disk: Large
-        Version: 2022    
+        Version: 2022
+          Network: KS3 # this retricts network access to public upstream repositories
+# Currently can't be used as some NPM pkgs like tree-sitter-cli reach out to GitHub to get the actual zip pkg
 #        Network: NetLock
     customTags: 'ES365AIMigrationTooling'
     globalSdl:
@@ -57,7 +59,7 @@ extends:
         apiscan:
           enabled: false
 
-    stages:
+    stages:     
     - stage: BuildAndSign
       displayName: Build Native Binaries
       dependsOn: []