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-tests.yml

@@ -17,7 +17,7 @@ jobs:
       sha: ${{ steps.vars.outputs.sha }}
     steps:
       # checkout code and setup go
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"
@@ -49,7 +49,7 @@ jobs:
       E2E_KUBECONFIG_ROOT: ${{ github.workspace }}/kubeconfigs
     steps:
       # checkout code and setup go
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"
@@ -136,7 +136,7 @@ jobs:
       E2E_KUBECONFIG_ROOT: ${{ github.workspace }}/kubeconfigs
     steps:
       # checkout code and setup go
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"

.github/workflows/go-verdiff.yaml

@@ -10,7 +10,7 @@ jobs:
   go-verdiff:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Check golang version

.github/workflows/goreleaser.yaml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up Go

.github/workflows/quickstart.yml

@@ -8,7 +8,7 @@ jobs:
   install-quickstart:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - run: |
         curl -sLo kind "$(curl -sL https://api.github.com/repos/kubernetes-sigs/kind/releases/latest | jq -r '[.assets[] | select(.name == "kind-linux-amd64")] | first | .browser_download_url')"
         chmod +x kind

.github/workflows/sanity.yaml

@@ -10,7 +10,7 @@ jobs:
   check-vendor:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-go@v6
       with:
         go-version-file: "go.mod"
@@ -19,7 +19,7 @@ jobs:
   static-analysis:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-go@v6
       with:
         go-version-file: "go.mod"
@@ -28,7 +28,7 @@ jobs:
   verify:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"

.github/workflows/unit.yml

@@ -14,7 +14,7 @@ jobs:
       github.event_name != 'issue_comment' || startsWith(github.event.comment.body, '/retest unit')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-go@v6
         with:
           go-version-file: "go.mod"