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] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci-composite-actions.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: 'recursive'
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: 'recursive'
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/dependabot-auto-merge.yml

@@ -38,7 +38,7 @@ jobs:
     steps:
       - name: Dependabot Checkout
         if: ${{ inputs.auto-update-tag  == true }}
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: 'recursive'
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/linters.yml

@@ -20,14 +20,14 @@ jobs:
     steps:
       - name: Git Checkout
         if: github.actor != 'dependabot[bot]'
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: 'recursive'
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout PR
         if: github.actor == 'dependabot[bot]'
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           submodules: 'recursive'

.github/workflows/ouroboros.yml

@@ -70,6 +70,6 @@ jobs:
       contents: read
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: devops-actions/actionlint@v0.1.10

.github/workflows/update-gradle-wrapper.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout PR
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           submodules: 'recursive'
           token: ${{ secrets.GITHUB_TOKEN }}