Try the prefix path given by brew

Author: pcolby

.github/workflows/build.yaml

@@ -217,6 +217,7 @@ jobs:
       - uses: actions/checkout@v4
       - run: brew --prefix llvm
       - run: |
+          /opt/homebrew/opt/llvm/bin/llvm-profdata --version
           #find /usr/local/opt/llvm -name 'llvm-*'
           '/opt/homebrew/Cellar/llvm@18/18.1.8/bin/llvm-profdata' --version
       - run: |