Use macos-14 for CI

Should be faster, maybe?

.github/workflows/build.yml

@@ -4,14 +4,9 @@ on: [push, pull_request]
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: macos-14
 
     steps:
     - uses: actions/checkout@v4
-    - name: set up JDK 11
-      uses: actions/setup-java@v4
-      with:
-        distribution: 'temurin'
-        java-version: 17
     - name: Build with Gradle
       run: ./gradlew build