Bump rubocop from 1.30.1 to 1.31.0 (#399)

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.30.1 to 1.31.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.30.1...v1.31.0)

---
updated-dependencies:
- dependency-name: rubocop
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: xmas7

Gemfile

@@ -18,7 +18,7 @@ end
 group :test do
   gem "climate_control", "~> 1.1.1"
   gem "rspec", "~> 3.11.0"
-  gem "rubocop", "~> 1.30.1"
+  gem "rubocop", "~> 1.31.0"
   gem "rubocop-performance", "~> 1.14.2"
   gem "simplecov", "~> 0.21.2"
   gem "simplecov-console", "~> 0.9.1"

Gemfile.lock

@@ -107,7 +107,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.11.0)
     rspec-support (3.11.0)
-    rubocop (1.30.1)
+    rubocop (1.31.0)
       parallel (~> 1.10)
       parser (>= 3.1.0.0)
       rainbow (>= 2.2.2, < 4.0)
@@ -155,7 +155,7 @@ GEM
       unicode-display_width (>= 1.1.1, < 3)
     thor (1.2.1)
     tilt (2.0.10)
-    unicode-display_width (2.1.0)
+    unicode-display_width (2.2.0)
     uuid (2.3.9)
       macaddr (~> 1.0)
     webrick (1.7.0)
@@ -175,7 +175,7 @@ DEPENDENCIES
   pry (~> 0.14.1)
   rake (~> 13.0.6)
   rspec (~> 3.11.0)
-  rubocop (~> 1.30.1)
+  rubocop (~> 1.31.0)
   rubocop-performance (~> 1.14.2)
   semver2 (~> 3.4)
   simplecov (~> 0.21.2)

allure-ruby-commons/spec/spec_helper.rb

@@ -70,5 +70,5 @@ def start_test_step(**options)
 end
 
 def clean_results_dir
-  FileUtils.remove_dir("spec/allure-results") if File.exist?("spec/allure-results")
+  FileUtils.rm_rf("spec/allure-results")
 end