fix: need to call the hook not pass it as a factory

config/config.go

@@ -47,7 +47,7 @@ func NewManager(logger *zap.Logger) (*Manager, error) {
 		return nil, err
 	}
 
-	err = v.Unmarshal(&config, viper.DecodeHook(cacheConfigHook))
+	err = v.Unmarshal(&config, viper.DecodeHook(cacheConfigHook()))
 	if err != nil {
 		return nil, err
 	}