Update CI

.github/workflows/ci.yml

@@ -10,33 +10,33 @@ on:
   workflow_dispatch:
 
 jobs:
-  macos_tests:
-    runs-on: macos-12
+  macos:
+    runs-on: macos-14
     strategy:
       matrix:
         xcode:
-          - "14.2" # Swift 5.7.2
-        command:
-          - test
-          # - benchmarks
+          - '16.0'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Select Xcode ${{ matrix.xcode }}
         run: sudo xcode-select -s /Applications/Xcode_${{ matrix.xcode }}.app
       - name: System
         run: system_profiler SPHardwareDataType
-      - name: Run ${{ matrix.command }}
-        run: make ${{ matrix.command }}
+      - name: Build
+        run: swift build
+      - name: Run tests
+        run: swift test
 
-  ubuntu_tests:
+  linux:
     strategy:
       matrix:
-        os: [ubuntu-20.04]
-
+        os: ubuntu-latest
+        swift:
+          - '6'
     runs-on: ${{ matrix.os }}
-
+  container: swift:${{ matrix.swift }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build
         run: swift build
       - name: Run tests