fix: MySQL->for() deprecation notice since version 3.5.7 (#47)

Wrong version referenced in the deprecation notice added in #46.

Reviewed-on: https://codeberg.org/vlw/php-mysql/pulls/47

src/MySQL.php

@@ -78,7 +78,7 @@
 
 		#[\Deprecated(
 			message: "use MySQL->from() instead",
-			since: "2.1.5",
+			since: "3.5.7",
 		)]
 		public function for(string $table): self {
 			$this->from($table);