Update protobuf monorepo to v4 (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
com.google.protobuf:protoc (source)	3.25.8 → 4.34.1
com.google.protobuf:protobuf-java (source)	3.25.8 → 4.34.1

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Release Notes

protocolbuffers/protobuf (com.google.protobuf:protoc)

v4.31.1

v4.31.0

v4.30.2

v4.30.1

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