Merge branch 'master' into 3.2-merge

# Conflicts:
#	.github/workflows/test.yml
#	src/command/composer.json
#	src/serializer/src/Contract/CacheableSupportsMethodInterface.php
#	src/validation/src/ValidationRuleParser.php

Author: limingxinleo

.gitattributes

@@ -1,2 +1,3 @@
 /tests export-ignore
 /.github export-ignore
+/types export-ignore

src/RedisConnection.php

@@ -203,9 +203,7 @@ protected function createRedisCluster(): RedisCluster
             $parameters[] = $this->config['timeout'] ?? 0.0;
             $parameters[] = $this->config['cluster']['read_timeout'] ?? 0.0;
             $parameters[] = $this->config['cluster']['persistent'] ?? false;
-            if (isset($this->config['auth'])) {
-                $parameters[] = $this->config['auth'];
-            }
+            $parameters[] = $this->config['auth'] ?? null;
             if (! empty($this->config['cluster']['context'])) {
                 $parameters[] = $this->config['cluster']['context'];
             }