Upgrade protobuf past version 4

[chhabrakadabra]

Is your feature request related to a problem? Please describe.

Feast pins protobuf to <4. This means that for M1 Apple machines, we have to employ some hacks. It would be nice to not have to do that. Also maintaining an upper bound on a popular library means that installing Feast alongside other libraries involves friction.

Describe the solution you'd like

Ideally, we remove the upper bound for protobuf in setup.py. It seems like the breaking changes are pretty minor: https://developers.google.com/protocol-buffers/docs/news/2022-05-06#python-updates

Describe alternatives you've considered

N/A

[kevjumba]

hey @chhabrakadabra, this is actually not possible as of now since we have 2 packages(tensorflow-metadata) and grpcio that have their own caps for under protobuf version 4. I am going to relax the protobuf dependency for now but the version will not rise above 4 due to these packages.

Both grpcio-tools and tensorflow-metadata are the latest version so there's nothing we can really do until they update their dependencies.