chore(benchmark): fix conflict args (#282)

Co-authored-by: Kevin Deng 三咲智子 <sxzz@sxzz.moe>

benchmark/index.js

@@ -29,7 +29,7 @@ const {
   options: {
     skipLib: {
       type: 'boolean',
-      short: 'v',
+      short: 'l',
     },
     skipApp: {
       type: 'boolean',