fix tls redis parsing

tests/configs/redis_cluster_tls.php

@@ -0,0 +1,29 @@
+<?php
+
+$CONFIG = [
+	'overwrite.cli.url' => 'https://cloud.example.com',
+	'dbtype' => 'mysql',
+	'dbname' => 'nextcloud',
+	'dbhost' => '127.0.0.1',
+	'dbport' => '',
+	'dbtableprefix' => 'oc_',
+	'dbuser' => 'nextcloud',
+	'dbpassword' => 'secret',
+     'redis.cluster' =>
+      array (
+        'seeds' =>
+        array (
+          0 => 'db1:6380',
+          1 => 'db1:6381',
+        ),
+        'password' => 'xxx',
+        'timeout' => 0.0,
+        'read_timeout' => 0.0,
+        'failover_mode' => \RedisCluster::FAILOVER_ERROR,
+        'ssl_context' => [
+          'local_cert' => '/certs/redis.crt',
+          'local_pk' => '/certs/redis.key',
+          'cafile' => '/certs/ca.crt'
+        ]
+      ),
+];

tests/configs/redis_tls.php

@@ -9,7 +9,7 @@ $CONFIG = [
 	'dbuser' => 'nextcloud',
 	'dbpassword' => 'secret',
 	'redis' => [
-		'host' => 'localhost',
+		'host' => 'tls://localhost',
     'ssl_context' => [
       'local_cert' => '/certs/redis.crt',
       'local_pk' => '/certs/redis.key',