Add Windows ARM64 binaries to nightly builds

[hmartinez82]

Please check if the PR fulfills these requirements

See how to contribute

• The PR has no duplicates (please search among the Pull Requests
  before creating one)
• The PR follows
  our contributing guidelines
• 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?

This adds the missing arduino-cli binary for Windows on ARM.

What is the new behavior?

The nightly builds now include Windows ARM64 binaries.

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

No breaking changes to existing builds.

If this is accepted, the next steps would be

• Adding this to the release builds
• Adding MSI installers for Window son ARM (depending on which version of Wix is being used. If 3.14+ is being used then that's possible).
• Update docs with new links

Surprisingly, serial-discovery already provides ARM64 binaries: https://github.com/arduino/serial-discovery/releases