Update Rspec RequestExampleGroup
Update Rspec RequestExampleGroup

I get this warning:

```
Deprecation Warnings:

Filtering by an `:example_group` subhash is deprecated. Use the subhash to filter directly instead.
```
I've changed to this new way and It's working very well.

thogg4/grape,dslh/grape,generalassembly/grape,samotarnik/grape,niedhui/grape,brainyandbrown/grape,fangzhu19880123/grape,uberjay/grape,xurde/grape,jtmarmon/grape,maxprig/grape,jlfaber/grape,elliotlarson/grape,croeck/grape,dblock/grape,tylerdooling/grape,tildeio/grape,peterwillcn/grape,nikolai-b/grape,ferdinandrosario/grape,marshall-lee/grape,gencer/grape,intridea/grape,jrforrest/grape,hnq90/grape,zbelzer/grape,ronald/grape,franzliedke/grape,pvijayror/grape,ryancheung/grape,phusion/grape,oliveiradev/grape,suan/grape,shunyam/grape,virajs/grape,krufyliu/grape,namusyaka/grape,ruby-grape/grape,reynardmh/grape,cyberid41/grape,rnubel/grape,whouses/grape,markgeek/grape,cutalion/grape,ctembreull/grape,masarakki/grape,reprah/grape,klaustopher/grape,jerrod/grape,sideci-sample/sideci-sample-grape,Ivanknmk/grape,yonglehou/grape,balasankarc/grape,QuickPay/grape,rubyinhell/grape,hobofan/grape,LIQIDTechnology/grape