chore: add p2p milestone for mainnet (#6)

sebastijankuzner · web-flow · commit 863e0f607898 · 2022-08-16T10:59:38.000+02:00
diff --git a/src/mainnet/milestones.json b/src/mainnet/milestones.json
@@ -67,5 +67,11 @@
     {
         "height": 17632000,
         "aip37": true
+    },
+    {
+        "height": 21235300,
+        "p2p": {
+            "minimumVersions": [">=3.5.0"]
+        }
     }
 ]
