chore(deps): update dependency stepancheg/rust-protobuf to v3.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
stepancheg/rust-protobuf	minor	v3.3.0 -> v3.4.0

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Release Notes

stepancheg/rust-protobuf (stepancheg/rust-protobuf)

### [`v3.4.0`](https://togithub.com/stepancheg/rust-protobuf/compare/v3.3.0...v3.4.0) [Compare Source](https://togithub.com/stepancheg/rust-protobuf/compare/v3.3.0...v3.4.0)

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