Commits a9f24f0: [build] Upgrade @llvm to 0.8.9 (#17703) (David Burns) #17703 329b994: [rust] Use PKG again for Firefox macOS downloads (#17702) (David Burns) #17702 c0b8ff6: [rb] trim whitespace around NO_PROXY entries (#17565) (Augustin Gottlieb) #17565