File sync from hanakai-rb/repo-sync

Updated files:

- .github/workflows/ci.yml

Author: github-actions[bot]

.github/workflows/ci.yml

@@ -19,17 +19,10 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-        
-        - 3.4
-        
-        - 3.3
-        
-        - 3.3.0
-        
-        - 3.2
-        
-        - 3.1
-        
+        - "3.4"
+        - "3.3"
+        - "3.2"
+        - "3.1"
         include:
           - ruby: "3.4"
             coverage: "true"