Add OCMock dependency to iOS Sample App

Author: AliAbdelfattah

InstabugSample/ios/Podfile

@@ -23,6 +23,8 @@ target 'InstabugSample' do
   pod 'React-jsiexecutor', :path => '../node_modules/react-native/ReactCommon/jsiexecutor'
   pod 'React-jsinspector', :path => '../node_modules/react-native/ReactCommon/jsinspector'
   pod 'yoga', :path => '../node_modules/react-native/ReactCommon/yoga'
+  
+  pod 'OCMock', '~> 3.4'
 
   pod 'DoubleConversion', :podspec => '../node_modules/react-native/third-party-podspecs/DoubleConversion.podspec'
   pod 'glog', :podspec => '../node_modules/react-native/third-party-podspecs/glog.podspec'