Fix CI (#266)

Author: mikker

.github/workflows/ci.yml

@@ -8,19 +8,18 @@ on:
 
 jobs:
   format:
-    runs-on: macos-14
+    runs-on: macos-15
 
     steps:
       - uses: actions/checkout@v4
       - run: brew install swift-format
       - run: swift-format lint --recursive .
 
   test:
-    runs-on: macos-14
+    runs-on: macos-15
 
     steps:
       - uses: actions/checkout@v4
-      - run: sudo xcode-select -switch /Applications/Xcode_16.1.app
       - run: |
           xcodebuild test \
             -project "Leader Key.xcodeproj" \