chore(ci): bump actions/checkout from 5 to 6 in the github-actions group

Bumps the github-actions group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `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
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/autoreview.yml

@@ -6,7 +6,7 @@ jobs:
     name: reviewdog/actionlint
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           sparse-checkout: |
             .github
@@ -15,7 +15,7 @@ jobs:
     name: reviewdog/misspell
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Run misspell with reviewdog
         uses: reviewdog/action-misspell@v1
         with:
@@ -26,7 +26,7 @@ jobs:
     name: reviewdog/remark-lint
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install remark presets
         run: npm install
         shell: bash
@@ -38,7 +38,7 @@ jobs:
     name: codespell
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: codespell-project/actions-codespell@v2
         with:
           check_filenames: true

.github/workflows/pages.yml

@@ -17,7 +17,7 @@ jobs:
     # Specify runner + deployment step
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python
         uses: actions/setup-python@v6
         with:

.github/workflows/test.arduino-compile-examples.yml

@@ -11,7 +11,7 @@ jobs:
   hide_bot_comments:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Hide outdated bot comments
         if: github.event_name == 'pull_request'
         uses: actions/github-script@v8
@@ -90,7 +90,7 @@ jobs:
                 version: 3.1.0
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Compiles every example with Arduino IDE.
         uses: arduino/compile-sketches@v1
         with:

.github/workflows/test.arduino-lint.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Run arduino library lint.
         uses: arduino/arduino-lint-action@v2
         with: