ci: exclude macos-14 LLVM from CI

Author: aminya

.github/workflows/ci.yml

@@ -64,9 +64,9 @@ jobs:
             compiler: appleclang
 
         # To exclude a specific job from the matrix (e.g llvm on macos-14), you can use this syntax.
-        # exclude:
-        #   - os: macos-14
-        #     compiler: llvm
+        exclude:
+          - os: macos-14
+            compiler: llvm
 
     steps:
       - uses: actions/checkout@v4