[CI] Fix macos schema violation.

Author: mjpt777

.github/workflows/ci.yml

@@ -167,7 +167,7 @@ jobs:
 
  cpp-clang-macos-build:
  name: C++ Xcode ${{ matrix.version }} (macOS)
- runs-on: macOS-latest
+ runs-on: macos-latest
  strategy:
  fail-fast: false
  env: