Revert "Add Ruby 3.2 in release workflow"

This reverts commit e8bc248.

Author: bangseongbeom

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        ruby: ["3.2", "3.3", "3.4", "4.0"]
+        ruby: ["3.3", "3.4", "4.0"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v6