Bump swift-actions/setup-swift from 1 to 2

Bumps [swift-actions/setup-swift](https://github.com/swift-actions/setup-swift) from 1 to 2.
- [Release notes](https://github.com/swift-actions/setup-swift/releases)
- [Commits](v1...v2)

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

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

Author: dependabot[bot]

.github/workflows/stability.yml

@@ -13,7 +13,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
         swift: ["5.10"]
     steps:
-    - uses: swift-actions/setup-swift@v1
+    - uses: swift-actions/setup-swift@v2
       with:
         swift-version: ${{ matrix.swift }}
     - name: Swift version