opt(torii/core): add explicit limit to sql query

Even though we where already using `fetch_one` to only fetch a single row, its documentation says to add a limit to the query explicitly.

commit-id:c0a96916

crates/torii/core/src/executor/mod.rs

@@ -614,7 +614,7 @@ impl<'c, P: Provider + Sync + Send + 'static> Executor<'c, P> {
                 let semaphore = self.semaphore.clone();
                 let provider = self.provider.clone();
                 let res = sqlx::query_as::<_, (String, String)>(&format!(
-                    "SELECT name, symbol FROM {TOKENS_TABLE} WHERE contract_address = ?"
+                    "SELECT name, symbol FROM {TOKENS_TABLE} WHERE contract_address = ? LIMIT 1"
                 ))
                 .bind(felt_to_sql_string(&register_erc721_token.contract_address))
                 .fetch_one(&mut **tx)