[Tasks] Migrated scheduler to embedded tasks. (#13)

src/tasks/checkExpiredBansTask.ts

@@ -0,0 +1,15 @@
+import { Client } from 'discord.js';
+import { Task } from '../types';
+import { checkExpiredBans } from '../utils';
+
+const task: Task = {
+  id: 'checkExpiredBans',
+  interval: 300000,
+  firstRun: true,
+
+  handle: async (context: Client) => {
+    await checkExpiredBans(context);
+  },
+};
+
+export default task;