Mark chromiumDev as broken since the build requires LLVM 11 which is not
yet in Nixpkgs (due to the lack of an RC, see #93324). Build error:
clang (LLVM option parsing): Unknown command line argument '-basic-aa-recphi=0'. Try: 'clang (LLVM option parsing) --help'
clang (LLVM option parsing): Did you mean '--basicaa-recphi=0'?
ninja: build stopped: subcommand failed.
11fbe97810