build(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](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>

.github/workflows/build.yml

@@ -35,7 +35,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Create matrix
         id: platforms
@@ -143,7 +143,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Create matrix
         id: platforms

.github/workflows/codeql.yml

@@ -46,7 +46,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 2
       # CodeQL 2.16.4's auto-build added support for multi-module repositories,

.github/workflows/e2e.yml

@@ -44,7 +44,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Update daemon.json
         run: |

.github/workflows/test.yml

@@ -60,7 +60,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: ${{ env.GOPATH }}/src/github.com/docker/cli
       -

.github/workflows/validate.yml

@@ -48,7 +48,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Generate
         shell: 'script --return --quiet --command "bash {0}"'
@@ -74,7 +74,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       -
         name: Run
         shell: 'script --return --quiet --command "bash {0}"'