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/charts.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Configure Git

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
     name: Go ${{ matrix.go }} version
     steps:
     - name: Check out repository code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Setup go
       uses: actions/setup-go@v6
       with:
@@ -57,7 +57,7 @@ jobs:
     needs: [test]
     steps:
     - name: Check out repository code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Set Tag Name
       run: |
         echo "TAG=${{ github.head_ref || github.ref_name }}" >> $GITHUB_ENV
@@ -129,7 +129,7 @@ jobs:
       - name: Create k8s Kind Cluster
         uses: helm/kind-action@v1.13.0
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Run K8s test
         run: |
           kubectl cluster-info
@@ -181,7 +181,7 @@ jobs:
   #     PR_NUMBER: ${{ github.event.number }}
   #   steps:
   #   - name: Check out repository code
-  #     uses: actions/checkout@v5
+  #     uses: actions/checkout@v6
   #   - name: Auto Merge PR
   #     uses: actions/github-script@v8
   #     with: