CI: add public_suffix v7 job

Author: dentarg

.github/workflows/test.yml

@@ -127,6 +127,7 @@ jobs:
           - { os: ubuntu-24.04, ruby: 2.7, gemfile: gemfiles/public_suffix_4.rb }
           - { os: ubuntu-24.04, ruby: 3.1, gemfile: gemfiles/public_suffix_5.rb }
           - { os: ubuntu-24.04, ruby: 3.1, gemfile: gemfiles/public_suffix_6.rb }
+          - { os: ubuntu-24.04, ruby: 3.4, gemfile: gemfiles/public_suffix_7.rb }
           # Ubuntu
           - { os: ubuntu-22.04, ruby: ruby }
           # macOS

gemfiles/public_suffix_7.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+# Assumes this gemfile is used from the project root
+eval_gemfile "../Gemfile"
+
+gem "public_suffix", "~> 7.0"