fix: increase upper limit for protobuf 5.X versions

[RobPasMue]

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Fixes #211 🦕

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[RobPasMue]

I have the CLA signed with my personal email... but I can't change it to my GitHub email which is 37798125+RobPasMue​@users.noreply.github.com... is there any way around this?

[parthea]

Thanks for opening a PR, @RobPasMue! Please see the CLA troubleshooting section here:
https://opensource.google/documentation/reference/cla#troubleshoot

I'm wondering if deprecation warnings for protobuf 3.x and 4.x should be emitted as compatibility of _pb2.py files may not be guaranteed across multiple major versions of protobuf. Alternatively, we could drop support for protobuf 3.x and 4.x (which would also help #135 (comment) as we would be able to upgrade grpcio-tools and use a newer version of protoc).

Please allow some time for me to discuss with my colleagues on the best approach. In the meantime, if presubmits pass, we could proceed with your proposed change. A separate PR could be prepared at a later time to deprecate/drop protobuf 3.x/4.x and eventually upgrade grpcio-tools. If presubmits fail, we may need to drop support for protobuf 3.x/4.x and upgrade grpcio-tools in order to add support for protobuf 5.x.

python-api-common-protos/noxfile.py

Lines 23 to 27 in 3940a04

	# NOTE: Pin the version of grpcio-tools to 1.48.2 for compatibility with
	# Protobuf 3.19.5. Please ensure that the minimum required version of
	# protobuf in setup.py is compatible with the pb2 files generated
	# by grpcio-tools before changing the pinned version below.
	GRPCIO_TOOLS_VERSION = "grpcio-tools==1.48.2"

[RobPasMue]

That'd be great @parthea - let me know if I can be of any help!

[RobPasMue]

Hi @parthea! Any news here?

[parthea]

Thanks @RobPasMue!

[RobPasMue]

Thanks @parthea! Any reason why the workflow is not running?

[parthea]

@RobPasMue, For the OwlBot Post Processor check there is no feedback while the workflow is running however the status will be reported once it's finished. I'll follow up on it to make sure it passes.

[RobPasMue]

Awesome, thanks! Really appreciated

[noam-better]

Hello, when will this make it onto PyPi? Currently still showing 1.63.0 with the incorrect <5.0 protobuf dependency