ci: fix PATH for clang on macOS

Author: picnixz

.github/workflows/tail-call.yml

@@ -113,6 +113,7 @@ jobs:
           brew install llvm@${{ matrix.llvm }}
           export SDKROOT="$(xcrun --show-sdk-path)"
           export PATH="/opt/homebrew/opt/llvm/bin:$PATH"
+          export PATH="/usr/local/opt/llvm@{{ matrix.llvm }}/bin:$PATH"
           export PATH="/usr/local/opt/llvm/bin:$PATH"
           CC=clang-19 ./configure --with-tail-call-interp
           make all --jobs 4