Migrate label config to v3 (#3351)

Author: Thraka

.ghal.rules.json

@@ -1,13 +1,25 @@
 {
-  "labels": {
-    "defaults": [ ":watch: Not Triaged" ],
-    "product": {
-      "(?i).*": "Source - Docs.ms"
-    },
-    "contentsource": {
-      "(?i).*dotnet-api-docs\/blob\/master\/xml\/system\\.net.*": ":card_file_box: Technology - NCL",
-      "(?i).*dotnet-api-docs\/blob\/master\/xml\/system\\.windows\\.forms.*": ":card_file_box: Technology - WinForms",
-      "(?i).*dotnet-api-docs\/blob\/master\/xml\/system\\.security.*": ":card_file_box: Technology - Security"
+  "version": 3,
+  "configRevision": 1,
+
+  "issue": {
+    "opened": {
+      "processor-default": {
+        "labels-add": [ ":watch: Not Triaged" ]
+      },
+      "processor-meta-docs": {
+        "contentsource": {
+          "(?i).*dotnet-api-docs\/blob\/master\/xml\/system\\.net.*": {
+            "labels-add": ":card_file_box: Technology - NCL"
+          },
+          "(?i).*dotnet-api-docs\/blob\/master\/xml\/system\\.windows\\.forms.*": {
+            "labels-add": ":card_file_box: Technology - WinForms"
+          },
+          "(?i).*dotnet-api-docs\/blob\/master\/xml\/system\\.security.*": {
+            "labels-add": ":card_file_box: Technology - Security"
+          }
+        }
+      }
     }
   }
 }