Merge pull request #132 from thinreports/test-against-ruby3.3

Test against Ruby3.3

Author: hidakatsuya

.github/workflows/test.yml

@@ -17,6 +17,7 @@ jobs:
           - "3.0"
           - "3.1"
           - "3.2"
+          - "3.3"
 
     steps:
       - uses: actions/checkout@v4

README.md

@@ -9,7 +9,7 @@ A Ruby library for [Thinreports](https://github.com/thinreports/thinreports).
 
 ### Supported Versions
 
-- Ruby 3.0, 3.1, 3.2
+- Ruby 3.0, 3.1, 3.2, 3.3
 - Prawn 2.4+
 
 ## Installation