.github/workflows/test.yml in standard-1.32.1 vs .github/workflows/test.yml in standard-1.33.0

@@ -14,10 +14,10 @@
   test:
 
     strategy:
       matrix:
         os: [ubuntu-latest]
-        ruby-version: [2.7, '3.0', 3.1, 3.2, head]
+        ruby-version: [2.7, '3.0', 3.1, 3.2, 3.3]
 
     runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v3