build(deps): bump swift-actions/setup-swift from 2.3.0 to 2.4.0

Bumps [swift-actions/setup-swift](https://github.com/swift-actions/setup-swift) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/swift-actions/setup-swift/releases)
- [Commits](swift-actions/setup-swift@v2.3.0...v2.4.0)

---
updated-dependencies:
- dependency-name: swift-actions/setup-swift
  dependency-version: 2.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/docs-swift.yml

@@ -52,7 +52,7 @@ jobs:
       - name: install jazzy
         run: gem install jazzy
 
-      - uses: swift-actions/setup-swift@v2.3.0
+      - uses: swift-actions/setup-swift@v2.4.0
         with:
           swift-version: "6.0"