Update ios.yml

Author: ssathy2

.github/workflows/ios.yml

@@ -8,21 +8,15 @@ on:
 
 jobs:
   build:
-    name: Build and Test default scheme using any available iPhone simulator
+    name: Build and Test SDKHostAppTests scheme using any available iPhone simulator
     runs-on: macos-latest
 
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-      - name: Set Default Scheme
-        run: |
-          scheme_list=$(xcodebuild -list -json | tr -d "\n")
-          default=$(echo $scheme_list | ruby -e "require 'json'; puts JSON.parse(STDIN.gets)['project']['targets'][0]")
-          echo $default | cat >default
-          echo Using default scheme: $default
       - name: Build
         env:
-          scheme: ${{ 'default' }}
+          scheme: ${{ 'SDKHostAppTests' }}
           platform: ${{ 'iOS Simulator' }}
         run: |
           # xcrun xctrace returns via stderr, not the expected stdout (see https://developer.apple.com/forums/thread/663959)