Update stash address and telemetry name for Khastor

The participant requested this change over email.

Old stash: `D6NNbc18fTh4WVQtmrTyLRHGv8SKVtjKFY8uV34k5ydBMaV`
New stash: `H4F8kJeJ8anTS1WUZATDaj6WfYzoxCvARaDFzQkN6pKzvvV`

Old name: `Khastor-KVN01`
New name: `Khastor-KVN03`

Author: michalisFr

candidates/kusama.json

@@ -1700,8 +1700,8 @@
     },
     {
       "slotId": 242,
-      "name": "Khastor-KVN01",
-      "stash": "D6NNbc18fTh4WVQtmrTyLRHGv8SKVtjKFY8uV34k5ydBMaV",
+      "name": "Khastor-KVN03",
+      "stash": "H4F8kJeJ8anTS1WUZATDaj6WfYzoxCvARaDFzQkN6pKzvvV",
       "riotHandle": "@khastor:matrix.org",
       "kyc": false
     },