fix: LRU constructor (#2004)

Author: wellwelwel

lib/connection.js

@@ -22,7 +22,7 @@ const EventEmitter = require('events').EventEmitter;
 const Readable = require('stream').Readable;
 const Queue = require('denque');
 const SqlString = require('sqlstring');
-const LRU = require('lru-cache');
+const LRU = require('lru-cache').default;
 
 const PacketParser = require('./packet_parser.js');
 const Packets = require('./packets/index.js');

lib/parsers/parser_cache.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const LRU = require('lru-cache');
+const LRU = require('lru-cache').default;
 
 const parserCache = new LRU({
   max: 15000