CI: Test aarch64-apple-ios in simulator.

.github/workflows/tests.yml

@@ -87,12 +87,24 @@ jobs:
 
   ios-tests:
     name: iOS Simulator Test
-    runs-on: macos-12
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-12, macos-14]
+        # Only test on stable to reduce macOS CI jobs
+        toolchain: [stable]
+        include:
+          - os: macos-12
+            target: x86_64-apple-ios
+            ios_platform: auto-ios-x86_64
+          - os: macos-14
+            target: aarch64-apple-ios-sim
+            ios_platform: auto-ios-aarch64-sim
     steps:
       - uses: actions/checkout@v3
       - uses: dtolnay/rust-toolchain@stable
         with:
-          targets: x86_64-apple-ios
+          targets: ${{ matrix.target }}
       - name: Install precompiled cargo-dinghy
         run: |
           VERSION=0.6.2
@@ -113,7 +125,7 @@ jobs:
           echo "device=$SIM_ID" >> $GITHUB_ENV
       - uses: Swatinem/rust-cache@v2
       - name: Run tests
-        run: cargo dinghy -d ${{ env.device }} test
+        run: cargo dinghy -p ${{ matrix.ios_platform }} -d ${{ env.device }} test
 
   windows-tests:
     name: Windows Test