Explicit null default for expire_time in Db\Schema\v2_1\BanGroups

Signed-off-by: Jon Stovell <jonstovell@gmail.com>

Author: Sesquipedalian

Sources/Db/Schema/v2_1/BanGroups.php

@@ -61,6 +61,8 @@ public function __construct()
 				name: 'expire_time',
 				type: 'int',
 				unsigned: true,
+				not_null: false,
+				default: null,
 			),
 			'cannot_access' => new Column(
 				name: 'cannot_access',