[BUGFIX] Use the return value of the UPDATE statement correctly in the LastSearchesRepository::update method

executeStatement() returns:
* false → SQL execution failed (real error)
* 0 → UPDATE executed successfully, but no data changed
* 1+ → UPDATE executed and changed data

Fixes: #4499

Author: RZivaralam

Classes/Domain/Search/LastSearches/LastSearchesRepository.php

@@ -139,7 +139,7 @@ protected function update(array $lastSearchesRow): void
             ->set('keywords', $lastSearchesRow['keywords'])
             ->executeStatement();
 
-        if ($affectedRows < 1) {
+        if ($affectedRows === false) {
             throw new InvalidArgumentException(vsprintf('By trying to update last searches row with values "%s" nothing was updated, make sure the given "sequence_id" exists in database.', [json_encode($lastSearchesRow)]), 1502717923);
         }
     }