Added mypy-protobuf

[acroca]

Description

I tried running the script to update the protos and I run into the following error:

.venv ❯ ./tools/regen_grpcclient.sh
Downloading https://raw.githubusercontent.com/dapr/dapr/master/dapr/proto/common/v1/common.proto ...
~/code/python-sdk/dapr/proto/common/v1 ~/code/python-sdk
~/code/python-sdk
protoc-gen-mypy: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--mypy_out: protoc-gen-mypy: Plugin failed with status code 1.
Downloading https://raw.githubusercontent.com/dapr/dapr/master/dapr/proto/runtime/v1/appcallback.proto ...
~/code/python-sdk/dapr/proto/runtime/v1 ~/code/python-sdk
~/code/python-sdk
protoc-gen-mypy: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--mypy_out: protoc-gen-mypy: Plugin failed with status code 1.
Downloading https://raw.githubusercontent.com/dapr/dapr/master/dapr/proto/runtime/v1/dapr.proto ...
~/code/python-sdk/dapr/proto/runtime/v1 ~/code/python-sdk
~/code/python-sdk
protoc-gen-mypy: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--mypy_out: protoc-gen-mypy: Plugin failed with status code 1.

gRPC interface and proto buf generated successfully!

[marcduiker]

@holopin-bot @acroca Thank you! Here's a digital badge as a small token of appreciation.

[holopin-bot]

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