refactor: old Ruby code for Ruby 3.4

Signed-off-by: Dominik Gedon <dominik.gedon@suse.com>

Author: nodeg

.rubocop.yml

@@ -6,10 +6,16 @@ plugins:
   - rubocop-rspec
 
 AllCops:
-  NewCops: disable
+  NewCops: enable
   TargetRubyVersion: 3.4
   Exclude:
-    - 'lib/template/*.spec'
+    - "lib/template/*.spec"
+    - "vendor/**/*"
+
+# Added to enforce the frozen_string_literal: true header you just added
+Style/FrozenStringLiteralComment:
+  Enabled: true
+  EnforcedStyle: always
 
 Layout/LineLength:
   Max: 140
@@ -32,5 +38,14 @@ Metrics/PerceivedComplexity:
 Style/StringLiterals:
   EnforcedStyle: double_quotes
 
+# Allowing double quotes for all strings is your current style, 
+# but this ensures it stays consistent.
+Style/StringLiteralsInInterpolation:
+  EnforcedStyle: double_quotes
+
 Style/MultilineBlockChain:
   Enabled: false
+
+# RSpec specific tweaks for your Aruba tests
+RSpec/MultipleExpectations:
+  Max: 10