Fix DynamicStorage entity_type filtering to prevent CMS/product ID collision (magento#39968)

Author: rbouma

app/code/Magento/CatalogUrlRewrite/Model/Storage/DynamicStorage.php

@@ -165,6 +165,7 @@ private function findProductRewriteByRequestPath(array $data): ?array
 
         $productUrl = $this->getBaseName($requestPath);
         $data[UrlRewrite::REQUEST_PATH] = [$productUrl];
+        $data[UrlRewrite::ENTITY_TYPE] = 'product';
 
         $productFromDb = $this->connection->fetchRow($this->prepareSelect($data));
         if ($productFromDb === false) {