IA-2139: Update to bundler ~>2.0

Author: bushong1

.ruby-version

@@ -1 +1 @@
-2.5.1
+2.5.3

Dockerfile

@@ -21,6 +21,7 @@ WORKDIR $INSTALL_PATH
 RUN mkdir -p tmp/pids
 
 # Cache the bundle install
+RUN gem install 'bundler:~>2.0'
 COPY Gemfile Gemfile
 COPY Gemfile.lock Gemfile.lock
 RUN bundle install --quiet

Gemfile.lock

@@ -85,13 +85,11 @@ GEM
     marcel (1.0.1)
     method_source (1.0.0)
     mini_mime (1.1.1)
-    mini_portile2 (2.6.1)
     minitest (5.14.4)
     multipart-post (2.1.1)
     newrelic_rpm (4.8.0.341)
     nio4r (2.5.8)
-    nokogiri (1.12.4)
-      mini_portile2 (~> 2.6.1)
+    nokogiri (1.12.4-x86_64-linux)
       racc (~> 1.4)
     parallel (1.20.1)
     parser (2.7.2.0)
@@ -201,7 +199,7 @@ GEM
     websocket-extensions (0.1.5)
 
 PLATFORMS
-  ruby
+  x86_64-linux
 
 DEPENDENCIES
   byebug
@@ -226,4 +224,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   1.17.3
+   2.2.27