Upgraded [aruba, unicode-display_width, rubocop] gems

Gemfile.lock

@@ -41,7 +41,7 @@ GEM
     addressable (2.6.0)
       public_suffix (>= 2.0.2, < 4.0)
     arel (8.0.0)
-    aruba (0.14.8)
+    aruba (0.14.9)
       childprocess (>= 0.6.3, < 1.1.0)
       contracts (~> 0.9)
       cucumber (>= 1.3.19)
@@ -193,7 +193,6 @@ GEM
     powder (0.4.0)
       thor (>= 0.11.5)
     power_assert (1.1.3)
-    powerpack (0.1.2)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
@@ -263,15 +262,14 @@ GEM
       rspec-mocks (~> 3.8.0)
       rspec-support (~> 3.8.0)
     rspec-support (3.8.0)
-    rubocop (0.65.0)
+    rubocop (0.66.0)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.5, != 2.5.1.1)
-      powerpack (~> 0.1)
       psych (>= 3.1.0)
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
-      unicode-display_width (~> 1.4.0)
+      unicode-display_width (>= 1.4.0, < 1.6)
     rubocop-github (0.12.0)
       rubocop (~> 0.59)
     ruby-prof (0.17.0)
@@ -322,7 +320,7 @@ GEM
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)
-    unicode-display_width (1.4.1)
+    unicode-display_width (1.5.0)
     unicorn (5.5.0)
       kgio (~> 2.6)
       raindrops (~> 0.7)