ADD support for ruby 3.4 (#213)

See [announcement](https://www.ruby-lang.org/en/news/2024/12/25/ruby-3-4-0-released/).

.github/workflows/gem-push.yml

@@ -15,10 +15,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
-    - name: Set up Ruby 3.3
+    - name: Set up Ruby 3.4
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.3
+        ruby-version: 3.4
 
     - name: Publish to RubyGems
       run: |

.github/workflows/ruby.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby: ['3.1', '3.2', '3.3']
+        ruby: ['3.1', '3.2', '3.3', '3.4']
     steps:
     - uses: actions/checkout@v4
     - name: Set up Ruby ${{ matrix.ruby }}

.ruby-version

@@ -1 +1 @@
-3.3.6
+3.4.0

CHANGELOG.md

@@ -1,5 +1,8 @@
 # master (unreleased)
 
+Enhancement:
+* add support for ruby 3.4
+
 Deprecated:
 * ruby 3.1 is the minimum required ruby version