fix CI: update ruby 2.7.1 -> 3.1.4

.ruby-version

@@ -1 +1 @@
-2.7.1
+3.1.4

Gemfile

@@ -2,7 +2,7 @@
 # Public domain.
 
 source 'https://rubygems.org'
-gem 'aruba', '~> 2.1.0'
+gem 'aruba', '~> 2.2.0'
 gem 'rspec', '~> 3.12.0'
 gem 'rake', '~> 13.0.3'
 gem 'ronn', '~> 0.7.3'

Gemfile.lock

@@ -1,51 +1,47 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    aruba (2.1.0)
+    aruba (2.2.0)
       bundler (>= 1.17, < 3.0)
-      childprocess (>= 2.0, < 5.0)
       contracts (>= 0.16.0, < 0.18.0)
-      cucumber (>= 4.0, < 9.0)
+      cucumber (>= 8.0, < 10.0)
       rspec-expectations (~> 3.4)
       thor (~> 1.0)
     builder (3.2.4)
-    childprocess (4.1.0)
-    contracts (0.16.1)
-    cucumber (8.0.0)
+    contracts (0.17)
+    cucumber (9.1.2)
       builder (~> 3.2, >= 3.2.4)
-      cucumber-ci-environment (~> 9.0, >= 9.0.4)
-      cucumber-core (~> 11.0, >= 11.0.0)
-      cucumber-cucumber-expressions (~> 15.1, >= 15.1.1)
-      cucumber-gherkin (~> 23.0, >= 23.0.1)
-      cucumber-html-formatter (~> 19.1, >= 19.1.0)
-      cucumber-messages (~> 18.0, >= 18.0.0)
-      diff-lcs (~> 1.5, >= 1.5.0)
-      mime-types (~> 3.4, >= 3.4.1)
+      cucumber-ci-environment (~> 9.2, >= 9.2.0)
+      cucumber-core (~> 12.0)
+      cucumber-cucumber-expressions (~> 17.0)
+      cucumber-gherkin (> 24, < 27)
+      cucumber-html-formatter (> 20.3, < 22)
+      cucumber-messages (> 19, < 25)
+      diff-lcs (~> 1.5)
+      mini_mime (~> 1.1, >= 1.1.5)
       multi_test (~> 1.1, >= 1.1.0)
-      sys-uname (~> 1.2, >= 1.2.2)
-    cucumber-ci-environment (9.1.0)
-    cucumber-core (11.0.0)
-      cucumber-gherkin (~> 23.0, >= 23.0.1)
-      cucumber-messages (~> 18.0, >= 18.0.0)
-      cucumber-tag-expressions (~> 4.1, >= 4.1.0)
-    cucumber-cucumber-expressions (15.2.0)
-    cucumber-gherkin (23.0.1)
-      cucumber-messages (~> 18.0, >= 18.0.0)
-    cucumber-html-formatter (19.2.0)
-      cucumber-messages (~> 18.0, >= 18.0.0)
-    cucumber-messages (18.0.0)
-    cucumber-tag-expressions (4.1.0)
-    diff-lcs (1.5.0)
-    ffi (1.15.5)
+      sys-uname (~> 1.2, >= 1.2.3)
+    cucumber-ci-environment (9.2.0)
+    cucumber-core (12.0.0)
+      cucumber-gherkin (>= 25, < 27)
+      cucumber-messages (>= 20, < 23)
+      cucumber-tag-expressions (~> 5.0, >= 5.0.4)
+    cucumber-cucumber-expressions (17.0.1)
+    cucumber-gherkin (26.2.0)
+      cucumber-messages (>= 19.1.4, < 22.1)
+    cucumber-html-formatter (21.2.0)
+      cucumber-messages (> 19, < 25)
+    cucumber-messages (22.0.0)
+    cucumber-tag-expressions (5.0.6)
+    diff-lcs (1.5.1)
+    ffi (1.16.3)
     hpricot (0.8.6)
-    mime-types (3.4.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2023.0218.1)
+    mini_mime (1.1.5)
     multi_test (1.1.0)
     mustache (1.1.1)
     os (1.1.4)
     rake (13.0.6)
-    rdiscount (2.2.7)
+    rdiscount (2.2.7.3)
     ronn (0.7.3)
       hpricot (>= 0.8.2)
       mustache (>= 0.7.0)
@@ -54,28 +50,29 @@ GEM
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
       rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.1)
+    rspec-core (3.12.2)
       rspec-support (~> 3.12.0)
-    rspec-expectations (3.12.2)
+    rspec-expectations (3.12.3)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.3)
+    rspec-mocks (3.12.6)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
-    rspec-support (3.12.0)
-    sys-uname (1.2.2)
+    rspec-support (3.12.1)
+    sys-uname (1.2.3)
       ffi (~> 1.1)
-    thor (1.2.1)
+    thor (1.3.0)
 
 PLATFORMS
+  arm64-darwin-22
   ruby
 
 DEPENDENCIES
-  aruba (~> 2.1.0)
+  aruba (~> 2.2.0)
   os (~> 1.1.4)
   rake (~> 13.0.3)
   ronn (~> 0.7.3)
   rspec (~> 3.12.0)
 
 BUNDLED WITH
-   2.1.4
+   2.5.5