Install shaderc instead of vulkan-tools to provide glslc

Co-authored-by: dontpanic92 <1056013+dontpanic92@users.noreply.github.com>

Author: Copilot

.github/workflows/ci-macos.yml

@@ -26,8 +26,9 @@ jobs:
       - name: Install Deps
         run: |
           brew install automake fdk-aac git lame libass libtool libvorbis libvpx opus sdl shtool texi2html theora wget x264 x265 xvid nasm
-          # Install Vulkan tools via Homebrew (includes glslc shader compiler)
-          brew install molten-vk vulkan-headers vulkan-loader vulkan-tools
+          # Install Vulkan tools via Homebrew
+          # shaderc provides glslc (shader compiler needed by build.rs)
+          brew install molten-vk vulkan-headers vulkan-loader shaderc
       - name: Cache ffmpeg
         uses: actions/cache@v3
         with: