chore(deps): update dependency protoc to v34.2

[renovate]

This PR contains the following updates:

Package	Update	Change
protoc	minor	34.1 → 34.2

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Release Notes

protocolbuffers/protobuf (protoc)

v34.2: Protocol Buffers v34.2

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Announcements

• Protobuf News may include additional announcements or pre-announcements for upcoming changes.

Bazel

• Remove unused dependency on aspect_bazel_lib (784a77f)

C++

• Workaround for attribute handling bug in gcc < 13 (1a5c5c5)

upb

• Avoid theoretical overflow of uintptr_t in AddAllLinkedExtensions (08d520a)
• Fixed two GCC-only issues around upb's generated extension registry (33debf3)

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