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] <[email protected]>

Author: dependabot[bot]

.github/workflows/e2e.yaml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Set up Go
       uses: actions/setup-go@v6
       with:
@@ -72,7 +72,7 @@ jobs:
         chmod +x ./kind
         sudo mv ./kind /usr/local/bin/kind
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Set up Go
       uses: actions/setup-go@v6
       with:
@@ -112,7 +112,7 @@ jobs:
       IP_FAMILY: ${{ matrix.ipFamily }}
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Enable ipv4 and ipv6 forwarding
       run: |

.github/workflows/golangci-lint.yaml

@@ -19,7 +19,7 @@ jobs:
     name: lint
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
           go-version: ${{ env.GO_VERSION }}