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] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
   SwiftLint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: GitHub Action for SwiftLint
         uses: norio-nomura/action-swiftlint@3.2.1
         with:
@@ -44,7 +44,7 @@ jobs:
             runsOn: macOS-14
             name: "macOS 14, Xcode 15.4, Swift 5.10"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: ${{ matrix.name }}
         run: xcodebuild test -scheme "Validator-Package" -destination "platform=macOS" clean -enableCodeCoverage YES -resultBundlePath "test_output/${{ matrix.name }}.xcresult" || exit 1
       - name: Upload test coverage reports to Codecov
@@ -77,7 +77,7 @@ jobs:
             xcode: "Xcode_15.3"
             runsOn: macos-14
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: ${{ matrix.name }}
         run: xcodebuild test -scheme "Validator-Package" -destination "${{ matrix.destination }}" clean -enableCodeCoverage YES -resultBundlePath "test_output/${{ matrix.name }}.xcresult" || exit 1
       - uses: actions/upload-artifact@v5
@@ -108,7 +108,7 @@ jobs:
             xcode: "Xcode_15.3"
             runsOn: macos-14
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: ${{ matrix.name }}
         run: xcodebuild test -scheme "Validator-Package" -destination "${{ matrix.destination }}" clean -enableCodeCoverage YES -resultBundlePath "test_output/${{ matrix.name }}.xcresult" || exit 1
       - name: Upload test coverage reports to Codecov
@@ -145,7 +145,7 @@ jobs:
             xcode: "Xcode_15.3"
             runsOn: macos-14
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: ${{ matrix.name }}
         run: xcodebuild test -scheme "Validator-Package" -destination "${{ matrix.destination }}" clean -enableCodeCoverage YES -resultBundlePath "test_output/${{ matrix.name }}.xcresult" || exit 1
       - name: Upload test coverage reports to Codecov
@@ -178,7 +178,7 @@ jobs:
             xcode: "Xcode_15.3"
             runsOn: macos-14
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: ${{ matrix.name }}
         run: swift build -c release
 
@@ -203,7 +203,7 @@ jobs:
     env:
       DEVELOPER_DIR: /Applications/Xcode_16.4.app/Contents/Developer
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python environment
         run: |

.github/workflows/conventional-pr.yml

@@ -12,7 +12,7 @@ jobs:
   lint-pr:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: amannn/action-semantic-pull-request@v6
         with:
           requireScope: false

.github/workflows/danger.yml

@@ -18,7 +18,7 @@ jobs:
           ruby-version: 3.1.4
           bundler-cache: true
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup gems
         run: |
           gem install bundler