[Cache] Change PDO cache table collate from utf8_bin to utf8mb4_bin

Author: pdragun

Store/PdoStore.php

@@ -284,7 +284,7 @@ public function createTable(): void
 
         switch ($driver) {
             case 'mysql':
-                $sql = "CREATE TABLE $this->table ($this->idCol VARCHAR(64) NOT NULL PRIMARY KEY, $this->tokenCol VARCHAR(44) NOT NULL, $this->expirationCol INTEGER UNSIGNED NOT NULL) COLLATE utf8_bin, ENGINE = InnoDB";
+                $sql = "CREATE TABLE $this->table ($this->idCol VARCHAR(64) NOT NULL PRIMARY KEY, $this->tokenCol VARCHAR(44) NOT NULL, $this->expirationCol INTEGER UNSIGNED NOT NULL) COLLATE utf8mb4_bin, ENGINE = InnoDB";
                 break;
             case 'sqlite':
                 $sql = "CREATE TABLE $this->table ($this->idCol TEXT NOT NULL PRIMARY KEY, $this->tokenCol TEXT NOT NULL, $this->expirationCol INTEGER)";