build(deps): bump actions/checkout from 5 to 6 (#2001)

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

.github/workflows/build.yml

@@ -28,7 +28,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: yaml-lint
         uses: ibiqlik/action-yamllint@v3
       - name: Setup golangci-lint
@@ -45,7 +45,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Run unit tests
         run: make tests
       - name: Upload code coverage
@@ -61,7 +61,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Kubernetes cluster (KIND)
         uses: engineerd/setup-kind@v0.6.2
         with:
@@ -91,7 +91,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Dry-run release snapshot

.github/workflows/mkdocs-deploy.yaml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout main
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: true

.github/workflows/publish.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check Out Repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Run unit tests