fix: 修复在 php8 环境下 session 使用 Redis 时不兼容的问题

library/think/session/driver/Redis.php

@@ -42,6 +42,7 @@ class Redis extends SessionHandler
      * @return bool
      * @throws Exception
      */
+    #[\ReturnTypeWillChange]
     public function open($savePath, $sessName)
     {
         // 检测php环境
@@ -69,6 +70,7 @@ class Redis extends SessionHandler
      * 关闭Session
      * @access public
      */
+    #[\ReturnTypeWillChange]
     public function close()
     {
         $this->gc(ini_get('session.gc_maxlifetime'));
@@ -83,6 +85,7 @@ class Redis extends SessionHandler
      * @param string $sessID
      * @return string
      */
+    #[\ReturnTypeWillChange]
     public function read($sessID)
     {
         return (string) $this->handler->get($this->config['session_name'] . $sessID);
@@ -92,9 +95,10 @@ class Redis extends SessionHandler
      * 写入Session
      * @access public
      * @param string $sessID
-     * @param String $sessData
+     * @param string $sessData
      * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function write($sessID, $sessData)
     {
         if ($this->config['expire'] > 0) {
@@ -110,6 +114,7 @@ class Redis extends SessionHandler
      * @param string $sessID
      * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function destroy($sessID)
     {
         return $this->handler->del($this->config['session_name'] . $sessID) > 0;
@@ -121,6 +126,7 @@ class Redis extends SessionHandler
      * @param string $sessMaxLifeTime
      * @return bool
      */
+    #[\ReturnTypeWillChange]
     public function gc($sessMaxLifeTime)
     {
         return true;