Added upb to python manifest
@ -8,6 +8,7 @@ graft third_party/address_sorting
graft third_party/boringssl
graft third_party/cares
graft third_party/nanopb
graft third_party/upb
graft third_party/zlib
include src/python/grpcio/_parallel_compile_patch.py
include src/python/grpcio/_spawn_patch.py