feat: add --port-serial-number option to filter ports by serial number

[horw]

Description

This feature introduces a new CLI option --port-serial-number that allows users to filter ports based on a comma-separated list of serial numbers.

• Updates esptool dependency to version 4.9.0.
• Adds --port-serial-number argument to the CLI under the esp_group.
• Populates the filters['serials'] field and passes it to esptool.get_port_list(**filters).

Related

Closes #316

Testing

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Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.

[hfudev]

LGTM. one naming question

[hfudev]

Thank you!