build(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](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/codeql-analysis.yml

@@ -41,7 +41,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL

.github/workflows/spellcheck.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Codespell
         uses: codespell-project/actions-codespell@v2
         with:

.github/workflows/test-next.yml

@@ -30,7 +30,7 @@ jobs:
             prepare: .github/prepare_debian.sh
     steps:
       - name: Git clone repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup tmate session, see https://github.com/marketplace/actions/debugging-with-tmate
         uses: mxschmitt/action-tmate@v3
         if: ${{ github.event_name == 'workflow_dispatch' && inputs.debug_enabled }}
@@ -68,7 +68,7 @@ jobs:
           - {"distro": "fedora:rawhide", "build": ".github/mock.sh"}
     steps:
       - name: Git clone repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup tmate session, see https://github.com/marketplace/actions/debugging-with-tmate
         uses: mxschmitt/action-tmate@v3
         if: ${{ github.event_name == 'workflow_dispatch' && inputs.debug_enabled }}

.github/workflows/test.yml

@@ -28,7 +28,7 @@ jobs:
             prepare: .github/prepare_debian.sh
     steps:
       - name: Git clone repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup tmate session, see https://github.com/marketplace/actions/debugging-with-tmate
         uses: mxschmitt/action-tmate@v3
         if: ${{ github.event_name == 'workflow_dispatch' && inputs.debug_enabled }}
@@ -69,7 +69,7 @@ jobs:
 #          - {"distro": "oraclelinux:9", "build": ".github/mock.sh"}
     steps:
       - name: Git clone repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup tmate session, see https://github.com/marketplace/actions/debugging-with-tmate
         uses: mxschmitt/action-tmate@v3
         if: ${{ github.event_name == 'workflow_dispatch' && inputs.debug_enabled }}