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] <support@github.com>

Author: dependabot[bot]

.github/workflows/auto-merge.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup (CI & Build) and Test Package
         uses: variablesoftware/github-actions-node-setup-and-test@main
         # uses: ./.github/actions/setup-and-test

.github/workflows/ci-semantic-release-sync.yml

@@ -76,7 +76,7 @@ jobs:
       cancel-in-progress: true
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup (CI & Build) and Test Package
         uses: variablesoftware/github-actions-node-setup-and-test@main
         # uses: ./.github/actions/setup-and-test
@@ -106,7 +106,7 @@ jobs:
           echo "RUN_LINT: ${{ inputs.RUN_LINT }}"
           echo "RUN_RELEASE: ${{ inputs.RUN_RELEASE }}"
       - name: Actions Checkout Code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Actions Set up Node.js
         uses: actions/setup-node@v5
         with:

.github/workflows/cleanup-branch.yml

@@ -36,7 +36,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/prune-releases.yaml

@@ -20,7 +20,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install GitHub CLI
         run: |