Bump actions/checkout from 5 to 6 in /.github/workflows (#2249)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build-api-lambda.yml

@@ -21,7 +21,7 @@ jobs:
     env:
       BINARY_PATH: .artifacts/Elastic.Documentation.Api.Lambda/release_linux-x64/bootstrap
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with: 
           ref: ${{ inputs.ref }}
       - name: Amazon Linux 2023 build

.github/workflows/build-link-index-updater-lambda.yml

@@ -18,7 +18,7 @@ jobs:
     env:
       BINARY_PATH: .artifacts/docs-lambda-index-publisher/release_linux-x64/bootstrap
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with: 
           ref: ${{ inputs.ref }}
       - name: Amazon Linux 2023 build

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
   validate-assembler:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Bootstrap Action Workspace
         id: bootstrap
@@ -44,7 +44,7 @@ jobs:
     env:
       MSBuildNoWarn: IDE0032
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Bootstrap Action Workspace
         id: bootstrap
@@ -77,7 +77,7 @@ jobs:
       run: 
         working-directory: src/Elastic.Documentation.Site
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v6
         with:
@@ -122,7 +122,7 @@ jobs:
          - macos-latest
          - windows-latest
     steps:          
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: 'Windows only, set TEMP to the same drive'
         if: ${{ matrix.os == 'windows-latest' }}
         #  temporary waiting for https://github.com/parcel-bundler/parcel/pull/10095 to fix
@@ -161,7 +161,7 @@ jobs:
   integration:
     runs-on: docs-builder-latest-16
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Bootstrap Action Workspace
         id: bootstrap

.github/workflows/create-major-tag.yml

@@ -15,7 +15,7 @@ jobs:
   create-major-tag:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Get major version
         run: |
           MAJOR_VERSION=$(echo "${GITHUB_REF#refs/tags/}" | awk -F. '{print $1}')

.github/workflows/deploy-api-lambda.yml

@@ -34,7 +34,7 @@ jobs:
     env:
       ZIP_FILE: api-lambda.zip
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Download bootstrap binary
         uses: actions/download-artifact@v6

.github/workflows/license.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Check license headers
         run: |

.github/workflows/prerelease.yml

@@ -28,7 +28,7 @@ jobs:
     steps:
       - id: repo-basename
         run: 'echo "value=`basename ${{ github.repository }}`" >> $GITHUB_OUTPUT'
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Pages
         id: pages
         uses: actions/configure-pages@v5.0.0
@@ -52,7 +52,7 @@ jobs:
       major-version: ${{ steps.bootstrap.outputs.major-version }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Bootstrap Action Workspace
         id: bootstrap

.github/workflows/preview-build.yml

@@ -152,7 +152,7 @@ jobs:
     steps:
       - name: Checkout
         if: contains(fromJSON('["push", "merge_group", "workflow_dispatch"]'), github.event_name)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.sha || github.ref }}
 
@@ -251,7 +251,7 @@ jobs:
             needs.check.outputs.any_modified == 'true'
             || contains(fromJSON('["push", "workflow_dispatch"]'), github.event_name)
           )
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.event.pull_request.head.sha || github.ref }}
           persist-credentials: false

.github/workflows/release.yml

@@ -52,7 +52,7 @@ jobs:
       major-version: ${{ steps.bootstrap.outputs.major-version }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ needs.release-drafter.outputs.tag_name }}
       - name: Bootstrap Action Workspace
@@ -144,7 +144,7 @@ jobs:
       major-version: ${{ steps.bootstrap.outputs.major-version }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ needs.release-drafter.outputs.tag_name }}
       - name: 'Windows only, set TEMP to the same drive'

.github/workflows/required-labels.yml

@@ -18,7 +18,7 @@ jobs:
       pull-requests: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Wait for PR to be ready (if just opened)
         if: github.event_name == 'pull_request_target' && github.event.action == 'opened'
         run: sleep 30