Merge pull request #10 from FlatIO/chore/gh-3.1

chore: run tests on ruby 3.3

Author: gierschv

.github/workflows/ruby.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['3.0', '3.1']
+        ruby-version: ['3.0', '3.1', '3.3']
 
     steps:
     - uses: actions/checkout@v3