Bump actions/checkout from 4 to 5 (#19)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci.yaml

@@ -16,7 +16,7 @@ jobs:
       id: go
 
     - name: checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: build
       run: go build
@@ -31,6 +31,6 @@ jobs:
       - uses: actions/setup-go@v5
         with:
           go-version: 1.24
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v8

.github/workflows/release.yaml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Go
         uses: actions/setup-go@v5