Add Ruby-3.4 support (#808)

Author: ixti

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: [ ruby-3.0, ruby-3.1, ruby-3.2, ruby-3.3 ]
+        ruby: [ ruby-3.0, ruby-3.1, ruby-3.2, ruby-3.3, ruby-3.4 ]
         os: [ ubuntu-latest ]
 
     steps:

README.md

@@ -113,6 +113,7 @@ the following Ruby  versions:
 - Ruby 3.1
 - Ruby 3.2
 - Ruby 3.3
+- Ruby 3.4
 - JRuby 9.4
 
 If something doesn't work on one of these versions, it's a bug.