Update macOS release build workflow

.github/workflows/macos-release-build.yml

@@ -47,6 +47,8 @@ jobs:
 
       - name: Install system dependencies
         run: |
+          brew update
+
           brew install cairo sccache gnu-tar mercurial
           sudo pip install setuptools
 
@@ -74,6 +76,9 @@ jobs:
 
           brew install watchman
 
+          brew uninstall llvm
+          brew install llvm@19 --force
+
       - name: Force usage fo gnu-tar
         run: |
           echo 'export PATH="/usr/local/opt/gnu-tar/libexec/gnubin:$PATH"' >> ~/.bash_profile