run CI with Ruby 3.4

Author: paddor

.github/workflows/draft_api.yml

@@ -11,7 +11,7 @@ jobs:
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '3.3'
+        ruby-version: '3.4'
     - name: Install ZMQ and CZMQ
       run: |
         export PKG_CONFIG_PATH=$HOME/lib/pkgconfig # custom libs (for linking)

.github/workflows/stable_api.yml

@@ -12,6 +12,7 @@ jobs:
           - '3.1'
           - '3.2'
           - '3.3'
+          - '3.4'
     steps:
     - uses: actions/checkout@v4
     - name: Set up Ruby ${{ matrix.ruby }}