Changed: higher timeout for watch test
Changed: higher timeout for watch test

In order to avoid
```
Error: ENOENT, no such file or directory
'test/fixtures/cli.output--watch-import.css’
```

cssnext/cssnext,arnaudbenard/cssnext,Gerhut/cssnext,michaelBenin/cssnext,MoOx/postcss-cssnext,zyj1022/cssnext,sassy/cssnext,dotnetCarpenter/cssnext,topaxi/cssnext,jonathantneal/cssnext,greyhwndz/cssnext,pensierinmusica/cssnext,MoOx/cssnext,BionicClick/cssnext,timhudson/cssnext,jedmao/cssnext,maximkoretskiy/cssnext