fix test action

Author: Thomas Taschauer

.github/workflows/ios_main.yml

@@ -48,6 +48,6 @@ jobs:
         run: bundle install
 
       - name: simulator
-        run: "$(xcode-select --print-path)$(echo /Applications/Simulator.app/Contents/MacOS/Simulator)" &
+        run: $(xcode-select --print-path)$(echo /Applications/Simulator.app/Contents/MacOS/Simulator) &
       - name: run tests
         run: bundle exec fastlane tests