Added support for Arduino CLI 1.0.0

[cmaglie]

Please check if the PR fulfills these requirements

• [X] The PR has no duplicates (please search among the Pull Requests before creating one)
• [X] The PR follows our contributing guidelines
• [ ] Tests for the changes have been added (for bug fixes / features)

What kind of change does this PR introduce? Applied changes to support Arduino CLI 1.0.0

What is the current behavior? The language server crashes, see #188 for details.

What is the new behavior? The LS works normally.

Other information: Supersedes #188 I'm starting this PR as a draft because I can't test it right now.

[cmaglie]

Thanks for testing it!