Use macos-13 (non M1/M2/M3 processor)

See https://github.com/douglascamata/setup-docker-macos-action?#arm64-processors-m1-m2-m3-series-used-on-macos-14-images-are-unsupported

.github/workflows/ci.yml

@@ -22,7 +22,8 @@ jobs:
         os:
           - ubuntu-latest
           - windows-latest
-          - macos-latest
+          # pinned to macos-13 due to https://github.com/actions/runner-images/issues/9254
+          - macos-13
         java:
           - 8
           - 17
@@ -40,7 +41,7 @@ jobs:
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v3
       - name: Install Docker on macOS
-        if: matrix.os == 'macos-latest'
+        if: matrix.os == 'macos-13'
         uses: douglascamata/setup-docker-macos-action@v1-alpha
       - name: clean build
         run: ./gradlew clean build --info --stacktrace