IDE2 must not use deprecated `real_name` gRPC API

[kittaakos]

Describe the problem

real_name has been removed from the CLI. arduino/arduino-cli#1890

IDE2 must adapt ASAP. Otherwise, IDE2 won't be able to use a pinned version of CLI from the arduino/arduino-ide due to breaking changes.

To reproduce

grep -rl --exclude-dir ./arduino-ide-extension/src/node/cli-protocol ".getRealName()" ./arduino-ide-extension/src/node
./arduino-ide-extension/src/node/library-service-impl.ts

Expected behavior

IDE2 is not using real_name

Arduino IDE version

945a8f4

Operating system

macOS

Operating system version

12.5.1

Additional context

No response

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the latest nightly build
• My report contains all necessary details