Bump minimum requirement Xcode version to 14.0

Author: kemchenj

.github/workflows/ci.yml

@@ -7,5 +7,5 @@ jobs:
     - uses: actions/checkout@v4
     - name: Run tests
       env: 
-        DEVELOPER_DIR: /Applications/Xcode_13.4.1.app
+        DEVELOPER_DIR: /Applications/Xcode_14.2.app
       run: swift test