Update example to do integrity check after sync

Author: avinassh

libsql/examples/remote_sync.rs

@@ -48,7 +48,13 @@ async fn main() {
     print!("Syncing with remote database...");
     db.sync().await.unwrap();
     println!(" done");
-
+    {
+        let mut stmt = conn.prepare("PRAGMA integrity_check").await.unwrap();
+        let mut rows = stmt.query(()).await.unwrap();
+        let result: String = rows.next().await.unwrap().unwrap().get(0).unwrap();
+        assert_eq!(result, "ok", "integrity check failed after sync");
+        println!("Integrity check passed after sync");
+    }
     conn.execute(
         r#"
         CREATE TABLE IF NOT EXISTS guest_book_entries (