Fix firmware metrics display issue on Windows

[shvmm]

Description:

The terminal would fail to display firmware metrics (memory type usage summary) on windows due to following error:

Building in release mode Linking .pioenvs\esp32-mq2\firmware.elf Firmware metrics can not be shown. Set the terminal codepage to "utf-8"

Relavant info:
utf-8 codepage in terminal can selected using chcp <code> command, where code is 65001 for utf-8.
Win11's also has a "Beta: Use Unicode UTF-8 for worldwide language support" checkbox.

Related issue (if applicable): fixes #

Checklist:

• The pull request is done against the latest develop branch
• Only relevant files were touched
• Only one feature/fix was added per PR, more changes are allowed when changing boards.json
• I accept the CLA

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[Jason2866]

Thx