Updated checkout action

Author: ankane

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
     env:
       BUNDLE_GEMFILE: ${{ matrix.gemfile }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}