updated configs

config/cache.php

@@ -14,7 +14,7 @@ return [
     | not explicitly specified when executing a given caching function.
     |
     | Supported: "apc", "array", "database", "file",
-    |            "memcached", "redis", "dynamodb"
+    |            "memcached", "redis", "dynamodb", "null"
     |
     */
 
@@ -46,6 +46,7 @@ return [
             'driver' => 'database',
             'table' => 'cache',
             'connection' => null,
+            'lock_connection' => null,
         ],
 
         'file' => [
@@ -75,6 +76,7 @@ return [
         'redis' => [
             'driver' => 'redis',
             'connection' => 'cache',
+            'lock_connection' => 'default',
         ],
 
         'dynamodb' => [