Upgrade bundler

CalSmokeApp/Gemfile

@@ -8,7 +8,7 @@ gem "json", "1.8.6"
 # workflow and build tools
 gem 'retriable', '~> 2.0'
 gem 'rake', '~> 10.3'
-gem 'bundler', '1.17.3'
+gem 'bundler', '2.0.2'
 gem 'xcpretty', '~> 0.1'
 gem "xamarin-test-cloud", "~> 2.0"
 gem 'rspec', '~> 3.0'

Gemfile

@@ -3,4 +3,4 @@ source "https://rubygems.org"
 gem "run_loop", github: "calabash/run_loop", branch: "develop"
 gem "json", "1.8.6"
 gem "luffa", github: "calabash/luffa", branch: "develop"
-gem "bundler"
+gem "bundler", "2.0.2"

azure-pipelines.yml

@@ -57,8 +57,10 @@ jobs:
       bundler -v
     displayName: "Ruby info"
 
-  - script: gem install bundler -v 1.17.3
-    displayName: "Install bundler 1.17.3"
+  - script: |
+      gem uninstall bundler
+      gem install bundler -v 2.0.2
+    displayName: "Install bundler 2.0.2"
 
   - script: |
       set -e
@@ -72,7 +74,7 @@ jobs:
       calabash-codesign/apple/create-keychain.sh
     displayName: "Download and install keychain"
     
-  - script: bundle _1.17.3_ install
+  - script: bundle install
     workingDirectory: 'CalSmokeApp'
     displayName: "CalSmokeApp bundle install"