refactor: update latest data source host url

lib/crawler.js

@@ -19,7 +19,7 @@ const casReg = /<tr class='.*?'><td><a href=.*?>(.*?)<\/a><\/td><td><a href=.*?>
 const vReg = /<tr class='.*?'><td>(.*?)<\/td><td>.*?<\/td><td>(.*?)<\/td><\/tr>/g
 
 const host = 'www.stats.gov.cn'
-const path = '/tjsj/tjbz/tjyqhdmhcxhfdm/2020/#{route}.html'
+const path = '/tjsj/tjbz/tjyqhdmhcxhfdm/2021/#{route}.html'
 
 /**
  * 抓取数据