fix: query dispute attestation signature parsing

Author: Maikol

src/mappings/horizonDisputeManager.ts

@@ -58,9 +58,9 @@ export function handleQueryDisputeCreated(event: QueryDisputeCreated): void {
   let request = '0x'.concat(attestationData.slice(2, 66))
   let response = '0x'.concat(attestationData.slice(66, 130))
   let attestation = new Attestation(request.concat('-').concat(response))
-  let v = attestationData.slice(194, 196)
-  let r = attestationData.slice(196, 260)
-  let s = attestationData.slice(260, 324)
+  let r = attestationData.slice(194, 258)
+  let s = attestationData.slice(258, 322)
+  let v = attestationData.slice(322, 324)
   attestation.responseCID = response
   attestation.requestCID = request
   attestation.subgraphDeployment = dispute.subgraphDeployment