Bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
   SwiftLint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: GitHub Action for SwiftLint
         uses: norio-nomura/[email protected]
         with:
@@ -43,7 +43,7 @@ jobs:
             xcode: "Xcode_14.3.1"
             runsOn: macos-13
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: ${{ matrix.name }}
         run: xcodebuild test -scheme "overlay-container" -destination "${{ matrix.destination }}" clean -enableCodeCoverage YES -resultBundlePath "test_output/${{ matrix.name }}.xcresult" || exit 1
       - uses: actions/upload-artifact@v4
@@ -56,7 +56,7 @@ jobs:
     env:
       DEVELOPER_DIR: /Applications/Xcode_14.1.app/Contents/Developer
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Discover typos
         run: |
           export PATH="$PATH:/Library/Frameworks/Python.framework/Versions/3.11/bin"

.github/workflows/danger.yml

@@ -18,7 +18,7 @@ jobs:
           ruby-version: 3.1.4
           bundler-cache: true
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Setup gems
         run: |
           gem install bundler