Update flatware to version 2.3.4

Gemfile

@@ -122,7 +122,7 @@ end
 
 group :test do
   # Enable usage of all available CPUs/cores during spec runs
-  gem 'flatware-rspec', github: 'briandunn/flatware' # TODO, remove on flatware release
+  gem 'flatware-rspec'
 
   # Adds RSpec Error/Warning annotations to GitHub PRs on the Files tab
   gem 'rspec-github', '~> 2.4', require: false

Gemfile.lock

@@ -7,17 +7,6 @@ GIT
       hkdf (~> 0.2)
       jwt (~> 2.0)
 
-GIT
-  remote: https://github.com/briandunn/flatware.git
-  revision: 1931edc85398704681ab5ef0a128b113aea07b2d
-  specs:
-    flatware (2.3.3)
-      drb
-      thor (< 2.0)
-    flatware-rspec (2.3.3)
-      flatware (= 2.3.3)
-      rspec (>= 3.6)
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -249,6 +238,12 @@ GEM
     ffi-compiler (1.3.2)
       ffi (>= 1.15.5)
       rake
+    flatware (2.3.4)
+      drb
+      thor (< 2.0)
+    flatware-rspec (2.3.4)
+      flatware (= 2.3.4)
+      rspec (>= 3.6)
     fog-core (2.5.0)
       builder
       excon (~> 0.71)
@@ -922,7 +917,7 @@ DEPENDENCIES
   faraday-httpclient
   fast_blank (~> 1.0)
   fastimage
-  flatware-rspec!
+  flatware-rspec
   fog-core (<= 2.6.0)
   fog-openstack (~> 1.0)
   haml-rails (~> 2.0)