Update resources/probe.json.schema

Co-authored-by: Alessio Buccino <[email protected]>

Author: bendichter

resources/probe.json.schema

@@ -91,7 +91,7 @@
               "type": "array",
               "items": { "type": ["integer", "number"] },
               "minItems": 2,
-              "maxItems": 2
+              "maxItems": 3
             }
           },
           "contact_ids": {