Add bundle install and pod repo update to travis script

Author: kylefleming

.travis.yml

@@ -2,8 +2,17 @@ osx_image: xcode11.1
 language: objective-c
 cache:
 - bundler
+gemfile: test/Gemfile
 before_install:
-- gem install cocoapods
+- bundle config
+before_script:
+- bundle config
+- cd test
+- bundle config
+- ls -al
+- bundle exec pod --version
+- bundle exec pod repo update
+- cd ..
 script:
 - rake install
 - cd test