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](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/audit.yml

@@ -12,7 +12,7 @@ jobs:
     name: Node.js package audit
     steps:
       - name: Git checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Setup Node.js

.github/workflows/docker.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE.
       - name: Git checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false

.github/workflows/node.js.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
     - name: Git checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
           persist-credentials: false
     - name: Use Node.js ${{ matrix.node-version }}