ci: Use macos-latest for macOS (Blacksmith has no macOS image)

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

Author: Cortex Dev

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [blacksmith-4vcpu-ubuntu-2404, blacksmith-4vcpu-windows-2025, blacksmith-2vcpu-macos-14]
+        os: [blacksmith-4vcpu-ubuntu-2404, blacksmith-4vcpu-windows-2025, macos-latest]
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
@@ -54,7 +54,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [blacksmith-4vcpu-ubuntu-2404, blacksmith-4vcpu-windows-2025, blacksmith-2vcpu-macos-14]
+        os: [blacksmith-4vcpu-ubuntu-2404, blacksmith-4vcpu-windows-2025, macos-latest]
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable