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](https://github.com/actions/checkout/compare/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] <support@github.com>

.github/workflows/archived_lint-checks.yaml

@@ -13,7 +13,7 @@ jobs:
     container: ghcr.io/hadolint/hadolint:latest-alpine
     steps:
       - name: ↩️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Get changed files
         id: changed_files
@@ -34,7 +34,7 @@ jobs:
     container: koalaman/shellcheck-alpine:latest
     steps:
       - name: ↩️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Get changed files
         id: changed_files
@@ -54,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ↩️ Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # Full git history is needed to get a proper list of changed files within `super-linter`
           fetch-depth: 0