[Merged by Bors] - Completely remove github.com/golang/protobuf dependency

[fasmat]

Motivation

Follow up to #5092. This completely removes github.com/golang/protobuf as a direct dependency.

Changes

• Replace github.com/golang/protobuf with google.golang.org/protobuf

Test Plan

TODO

• Explain motivation or link existing issue(s)
• Test changes and document test plan
• Update documentation as needed
• Update changelog as needed

[codecov]

Codecov Report

Merging #5098 (55bc546) into develop (41434a0) will increase coverage by 0.0%.
The diff coverage is 100.0%.

@@           Coverage Diff           @@
##           develop   #5098   +/-   ##
=======================================
  Coverage     77.0%   77.0%           
=======================================
  Files          257     257           
  Lines        30278   30278           
=======================================
+ Hits         23328   23343   +15     
+ Misses        5423    5407   -16     
- Partials      1527    1528    +1     

Files	Coverage Δ
api/grpcserver/activation_service.go	77.3% <100.0%> (ø)
api/grpcserver/admin_service.go	65.1% <100.0%> (ø)
api/grpcserver/debug_service.go	73.9% <100.0%> (ø)
api/grpcserver/node_service.go	65.7% <100.0%> (ø)
api/grpcserver/smesher_service.go	74.7% <100.0%> (ø)

... and 3 files with indirect coverage changes

[fasmat]

bors merge

[bors]

Build failed:

• ci-status

[fasmat]

make install failed on one runner

bors merge

[bors]

Pull request successfully merged into develop.

Build succeeded!

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