feat: DH-18086: grpc transport

[bmingles]

DH-18086: Use custom grpc transport

[github-actions]

End-to-end Test Summary

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Pending ⏳	Other ❓	Flaky 🍂	Duration ⏱️
6	6	0	0	0	0	0	05:01:34

A ctrf plugin

Detailed Test Results

Name	Status	ms	Flaky 🍂
should default to the correct settings	passed ✅	1990
should return custom settings: Empty configs	passed ✅	297
should return custom settings: Populated configs	passed ✅	103
should be able to load VSCode	passed ✅	1017
should only be visible when a supported file type is active: test.groovy	passed ✅	2895
should only be visible when a supported file type is active: test.py	passed ✅	1144

A ctrf plugin

Failed Test Summary

No failed tests ✨

Flaky Test Summary

No flaky tests detected. ✨