[breaking] Removed gRPC 'debug' service in favor of 'commands' service

[cmaglie]

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• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• UPGRADING.md has been updated with a migration guide (for breaking changes)
• configuration.schema.json updated if new parameters are added.

What kind of change does this PR introduce?

The gRPC service cc.arduino.cli.debug.v1 has been removed and all gRPC messages and rpc calls have been moved to cc.arduino.cli.commands.v1.

The gRPC message DebugConfigRequest has been renamed to the proper GetDebugConfigRequest.

All the generated API has been updated as well.

What is the current behavior?

No changes.

What is the new behavior?

Does this PR introduce a breaking change, and is titled accordingly?

Yes

Other information

[codecov]

Codecov Report

Attention: 8 lines in your changes are missing coverage. Please review.

Comparison is base (6aa1be0) 63.04% compared to head (1a9dc04) 63.12%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2349      +/-   ##
==========================================
+ Coverage   63.04%   63.12%   +0.08%     
==========================================
  Files         201      201              
  Lines       19259    19255       -4     
==========================================
+ Hits        12141    12155      +14     
+ Misses       6064     6051      -13     
+ Partials     1054     1049       -5     

Flag	Coverage Δ
unit	63.12% <38.46%> (+0.08%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
commands/debug/debug_info.go	54.05% <100.00%> (ø)
internal/cli/daemon/daemon.go	48.51% <ø> (-1.49%)	⬇️
internal/cli/debug/debug.go	68.13% <100.00%> (ø)
commands/daemon/debug.go	0.00% <0.00%> (ø)
commands/debug/debug.go	41.02% <16.66%> (ø)

... and 3 files with indirect coverage changes

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[kittaakos]

Thanks! IDE2 does not use the gRPC API for debug