fix: default config

Author: jeffizz

dist.ini

@@ -1,6 +1,6 @@
 # distribution config for opm packaging
 name = lua-resty-waf
-version = 1.2.2
+version = 1.2.3
 abstract = Simple WAF based on OpenResty written by Lua
 author = codiy1992
 is_original = yes

lib/resty/waf/shared.lua

@@ -10,7 +10,7 @@ function _M.get_config()
     if config ~= nil then
         return cjson.decode(config)
     end
-    return nil
+    return require('resty.waf.config')
 end
 
 function _M.reload_config()