deps(deps): bump actions/checkout from 4 to 6 (#87)

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](actions/checkout@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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: ⤵️ Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🏗 Setup nodejs
         uses: actions/setup-node@v6

.github/workflows/publish-container.yml

@@ -34,7 +34,7 @@ jobs:
 
     steps:
       - name: ⤵️ Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: 🏗 Setup Docker Buildx
         uses: docker/setup-buildx-action@v3