github-actions(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/dependabot-review.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: "ubuntu-latest"
     if: "${{ github.event.pull_request.user.login == 'dependabot[bot]' }}"
     steps:
-      - uses: "actions/checkout@v5"
+      - uses: "actions/checkout@v6"
         with:
           fetch-depth: "0"
           persist-credentials: "false"

.github/workflows/documentation.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: "actions/checkout@v5"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -50,7 +50,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v5"
+        uses: "actions/checkout@v6"
 
       - name: "Build"
         uses: "phpDocumentor/phpDocumentor@master"
@@ -69,7 +69,7 @@ jobs:
     needs: "build"
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v5"
+        uses: "actions/checkout@v6"
         with:
           repository: "phpDocumentor/docs"
           token: "${{ secrets.BOT_TOKEN }}"

.github/workflows/integrate.yaml

@@ -24,7 +24,7 @@ jobs:
     runs-on: "ubuntu-22.04"
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v5"
+        uses: "actions/checkout@v6"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -62,7 +62,7 @@ jobs:
     name: "Check architecture"
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v5"
+      - uses: "actions/checkout@v6"
       - name: "Install PHP"
         uses: "shivammathur/[email protected]"
         with:
@@ -108,7 +108,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v5"
+        uses: "actions/checkout@v6"
 
       - name: "Install libxml2-utils"
         run: |

.github/workflows/sub-split.yaml

@@ -19,7 +19,7 @@ jobs:
     runs-on: "ubuntu-latest"
     name: "Publish Sub-split"
     steps:
-      - uses: "actions/checkout@v5"
+      - uses: "actions/checkout@v6"
         with:
           fetch-depth: "0"
           persist-credentials: "false"