Add sync stdin command

src/stdin/sync.js

@@ -0,0 +1,15 @@
+const { StdinCommand } = require('@eartharoid/dbf');
+const sync = require('../lib/sync');
+
+module.exports = class extends StdinCommand {
+	constructor(client, options) {
+		super(client, {
+			...options,
+			id: 'sync',
+		});
+	}
+
+	async run() {
+		await sync(this.client);
+	}
+};