remove matrix

Author: fahad19

.github/workflows/checks.yml

@@ -15,9 +15,6 @@ on:
 jobs:
   ci:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        ruby-version: ["3.0", "3.4"]
 
     steps:
       - name: Check out
@@ -26,7 +23,6 @@ jobs:
       - name: Set up Ruby ${{ matrix.ruby-version }}
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: ${{ matrix.ruby-version }}
           bundler-cache: true
 
       - name: Install

.ruby-version

@@ -0,0 +1 @@
+3.4