Update GitHub Actions workflows to test Ruby 3.2, 3.3, 3.4

Co-authored-by: kojix2 <[email protected]>

Author: Copilot

.bundle/config

@@ -10,6 +10,9 @@ jobs:
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@v5
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "3.4"
       - name: Extract release note
         run: |
           ruby \

.github/workflows/release.yml

@@ -16,10 +16,9 @@ jobs:
       fail-fast: false
       matrix:
         ruby-version:
-          - "3.0"
-          - "3.1"
           - "3.2"
           - "3.3"
+          - "3.4"
         runs-on:
           - macos-latest
           - ubuntu-latest

.github/workflows/test.yml

@@ -2,4 +2,6 @@
 /_site/
 /pkg/
 /doc/
-.yardoc
+.yardoc
+/vendor/
+/.bundle/