Bump rubocop from 0.36.0 to 0.49.0 in /ruby

Bumps [rubocop](https://github.com/rubocop/rubocop) from 0.36.0 to 0.49.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v0.36.0...v0.49.0)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

ruby/Gemfile

@@ -3,5 +3,5 @@ source 'https://rubygems.org'
 gem 'minitest'
 gem 'rake'
 gem 'require_all'
-gem 'rubocop', '0.36.0'
+gem 'rubocop', '0.49.0'
 gem 'simplecov'

ruby/Gemfile.lock

@@ -1,28 +1,32 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    ast (2.4.0)
+    ast (2.4.2)
     docile (1.1.5)
     json (2.1.0)
     minitest (5.11.3)
-    parser (2.4.0.2)
-      ast (~> 2.3)
-    powerpack (0.1.1)
+    parallel (1.23.0)
+    parser (2.7.2.0)
+      ast (~> 2.4.1)
+    powerpack (0.1.3)
     rainbow (2.2.2)
       rake
     rake (12.3.0)
     require_all (1.5.0)
-    rubocop (0.36.0)
-      parser (>= 2.3.0.0, < 3.0)
+    rubocop (0.49.0)
+      parallel (~> 1.10)
+      parser (>= 2.3.3.1, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.7)
-    ruby-progressbar (1.9.0)
+      unicode-display_width (~> 1.0, >= 1.0.1)
+    ruby-progressbar (1.13.0)
     simplecov (0.15.1)
       docile (~> 1.1.0)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
+    unicode-display_width (1.8.0)
 
 PLATFORMS
   ruby
@@ -31,7 +35,7 @@ DEPENDENCIES
   minitest
   rake
   require_all
-  rubocop (= 0.36.0)
+  rubocop (= 0.49.0)
   simplecov
 
 BUNDLED WITH