build(deps): Bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 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/v4...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/autolabeller.yml

@@ -82,7 +82,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout your code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - uses: srvaroa/labeler@v1
         with:

.github/workflows/labels.yml

@@ -22,7 +22,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       -
         name: Run Labeler 
         uses: crazy-max/ghaction-github-labeler@v5