chore(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/lint.yml

@@ -13,7 +13,7 @@ jobs:
         with:
           go-version: 1.21
           stable: false
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v8
         with:

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
     if: github.triggering_actor == 'samber'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Set up Go
       uses: actions/setup-go@v6

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
           - '1.24'
           - '1.x'
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         # we need control over the path, since stacktrace tests rely on it
         path: github.com/samber/oops