Update ruby version in ci

Author: absk1317

.github/workflows/ci.yml

@@ -2,19 +2,19 @@ name: CI
 on:
   pull_request:
     branches:
-      - '*'
+      - "*"
 
   push:
     branches:
-      - '*'
+      - "*"
 
 jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['2.7']
+        ruby: ["3.4.4"]
 
     steps:
       - name: Checkout

.tool-versions

@@ -1 +1 @@
-ruby 2.7.3
+ruby 3.4.4