Update Rubocop configuration

.rubocop.yml

@@ -1,3 +1,7 @@
+require:
+  - rubocop-rake
+  - rubocop-rspec
+
 AllCops:
   NewCops: enable
 

Gemfile

@@ -6,7 +6,9 @@ source "https://rubygems.org"
 gemspec
 
 group :development do
-  gem  "rake", "~> 13.0"
-  gem  "rspec", "~> 3.0"
-  gem  "rubocop", "~> 1.21"
+  gem  "rake"
+  gem  "rspec"
+  gem  "rubocop"
+  gem "rubocop-rake"
+  gem "rubocop-rspec"
 end

Gemfile.lock

@@ -47,6 +47,19 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.31.2)
       parser (>= 3.3.0.4)
+    rubocop-capybara (2.20.0)
+      rubocop (~> 1.41)
+    rubocop-factory_bot (2.25.1)
+      rubocop (~> 1.41)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
+    rubocop-rspec (2.29.1)
+      rubocop (~> 1.40)
+      rubocop-capybara (~> 2.17)
+      rubocop-factory_bot (~> 2.22)
+      rubocop-rspec_rails (~> 2.28)
+    rubocop-rspec_rails (2.28.3)
+      rubocop (~> 1.40)
     ruby-progressbar (1.13.0)
     unicode-display_width (2.5.0)
 
@@ -56,9 +69,11 @@ PLATFORMS
 
 DEPENDENCIES
   hetzner-k3s!
-  rake (~> 13.0)
-  rspec (~> 3.0)
-  rubocop (~> 1.21)
+  rake
+  rspec
+  rubocop
+  rubocop-rake
+  rubocop-rspec
 
 BUNDLED WITH
    2.5.9

spec/hetzner/k3s_spec.rb

@@ -2,10 +2,6 @@
 
 RSpec.describe Hetzner::K3s do
   it "has a version number" do
-    expect(Hetzner::K3s::VERSION).not_to be nil
-  end
-
-  it "does something useful" do
-    expect(false).to eq(true)
+    expect(Hetzner::K3s::VERSION).not_to be_nil
   end
 end