chore(deps): update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
  - '3.1'
  - '3.2'
  steps:
- - uses: actions/checkout@v4
+ - uses: actions/checkout@v5
  - uses: ruby/setup-ruby@1a615958ad9d422dd932dc1d5823942ee002799f # v1.227.0
  with:
  ruby-version: ${{ matrix.ruby }}

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
  name: Publish to RubyGems
  runs-on: ubuntu-latest
  steps:
- - uses: actions/checkout@v4
+ - uses: actions/checkout@v5
  - uses: ruby/setup-ruby@v1
  with:
  ruby-version: '3.2'