Bump rubocop from 0.32.1 to 0.48.1

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.32.1 to 0.48.1.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v0.32.1...v0.48.1)

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -10,6 +10,6 @@ group :development do
   gem 'pry-byebug'
   gem 'rake', '10.1.0'
   gem 'rspec', '3.3.0'
-  gem 'rubocop', '0.32.1'
+  gem 'rubocop', '0.48.1'
   gem 'syck' if RUBY_VERSION.split('.').first.to_i > 1
 end

Gemfile.lock

@@ -3,8 +3,6 @@ GEM
   specs:
     CFPropertyList (2.3.6)
     ast (2.4.0)
-    astrolabe (1.3.1)
-      parser (~> 2.2)
     builder (3.2.4)
     byebug (9.0.6)
     ci_reporter (2.0.0)
@@ -58,16 +56,17 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.3.0)
     rspec-support (3.3.0)
-    rubocop (0.32.1)
-      astrolabe (~> 1.3)
-      parser (>= 2.2.2.5, < 3.0)
+    rubocop (0.48.1)
+      parser (>= 2.3.3.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
-      ruby-progressbar (~> 1.4)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-progressbar (1.10.1)
     stomp (1.4.9)
     syck (1.4.0)
     systemu (2.6.5)
+    unicode-display_width (1.6.1)
 
 PLATFORMS
   ruby
@@ -83,7 +82,7 @@ DEPENDENCIES
   puppet (= 3.7.5)
   rake (= 10.1.0)
   rspec (= 3.3.0)
-  rubocop (= 0.32.1)
+  rubocop (= 0.48.1)
   syck
 
 BUNDLED WITH