CI: also test x86_64-macos with a debug zig compiler

.github/workflows/ci.yaml

@@ -38,7 +38,7 @@ jobs:
         uses: actions/checkout@v3
       - name: Build and Test
         run: sh ci/aarch64-linux-release.sh
-  x86_64-macos:
+  x86_64-macos-debug:
     runs-on: "macos-11"
     env:
       ARCH: "x86_64"
@@ -46,7 +46,16 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
-        run: ci/x86_64-macos.sh
+        run: ci/x86_64-macos-debug.sh
+  x86_64-macos-release:
+    runs-on: "macos-11"
+    env:
+      ARCH: "x86_64"
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Build and Test
+        run: ci/x86_64-macos-release.sh
   aarch64-macos:
     runs-on: [self-hosted, macOS, aarch64]
     env: