chore(deps): bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pre-release-tests.yml

@@ -29,7 +29,7 @@ jobs:
           go-version: ${{ matrix.go }}
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Get dependencies
         run: go mod download

.github/workflows/release-check.yml

@@ -10,6 +10,6 @@ jobs:
     name: Validate release version
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Check release validity
         run: sh .github/scripts/check-release.sh

.github/workflows/tests.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/setup-go@v6
         with:
           go-version: 1.25
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v9
         with:
@@ -50,7 +50,7 @@ jobs:
           go-version: ${{ matrix.go }}
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Get dependencies
         run: go mod download