Bump the dependencies group with 1 update (#10)

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


Updates `actions/checkout` from 1 to 4
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v1...v4)

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

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

Author: dependabot[bot]

.github/workflows/swift.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: swift-actions/[email protected]
         with:
           swift-version: ${{ matrix.swift }}
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Build
         run: swift build -c release -Xswiftc -strict-concurrency=complete
       - name: Run tests
@@ -34,7 +34,7 @@ jobs:
       - uses: swift-actions/[email protected]
         with:
           swift-version: ${{ matrix.swift }}
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Build
         run: swift build -c release
       - name: Run tests
@@ -43,6 +43,6 @@ jobs:
     name: SwiftLint version 3.2.1
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: GitHub Action for SwiftLint
         uses: norio-nomura/[email protected]