chore: fix typo in discord member mock data index

Author: Ajeyakrishna-k

test/integration/tasks.test.js

@@ -1361,7 +1361,7 @@ describe("Tasks", function () {
       const roles1 = [...discordMembers[0].roles, "9876543210"];
       const roles2 = [...discordMembers[1].roles, "9876543210"];
       discordMembers[0].roles = roles1;
-      discordMembers[0].roles = roles2;
+      discordMembers[1].roles = roles2;
       sinon.stub(discordService, "getDiscordMembers").returns(discordMembers);
       jwtToken = generateCronJobToken({ name: CRON_JOB_HANDLER });
     });