ci: test with ruby 3.4

Author: flavorjones

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3", "head"]
+        ruby: ["3.1", "3.2", "3.3", "3.4", "head"]
     steps:
       - uses: actions/checkout@v4
       - run: rm Gemfile.lock
@@ -45,7 +45,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.2"
+          ruby-version: "3.4"
           bundler: latest
       - run: test/integration/user_journey_test.sh
         shell: bash