fix: Add upload flags to boards.txt for Twin AIoT Module to resolve upload error

[bekirr12]

This pull request addresses a missing board definition for the Twin AIoT module in the boards.txt file, resolving a critical upload error. This change is to solve the error we received in the twinaiot module that we added in the previous PR.

Problem Description
When attempting to upload a sketch to the Twin AIoT board, the build and upload process failed due to a missing line in the board's configuration file. The specific error message received was:

No such command '{upload.flags}'

This error was caused by the absence of the upload.flags and upload.extra_flags parameters in the Twin AIoT Module definition. The Arduino IDE's build system, which uses the platform.txt template, was unable to correctly format the esptool.py command-line arguments without these keys, leading to a failed upload.

Solution
This pull request adds the following lines to the Twin AIoT Module definition in the boards.txt file:

twinaiot.upload.flags=
twinaiot.upload.extra_flags=

This simple correction ensures that the build system can properly resolve the command-line arguments, allowing the firmware upload to proceed without errors.

Test Scenario
This change has been tested on the following hardware and software configuration:

Hardware: Twin AIoT Module (ESP32-S3-Mini-1 N4R2)

Software: Arduino IDE 2.3.6

Test: A simple "Blink" sketch was successfully compiled and uploaded, confirming that the upload process works as expected.

[github-actions]

Warnings

⚠️

Some issues found for the commit messages in this PR: the commit message "fix: Add upload flags to boards.txt for Twin AIoT Module to resolve upload error": summary appears to be too long Please fix these commit messages - here are some basic tips: follow Conventional Commits style correct format of commit message should be: <type/action>(<scope/component>): <summary>, for example fix(esp32): Fixed startup timeout issue allowed types are: change,ci,docs,feat,fix,refactor,remove,revert,test sufficiently descriptive message summary should be between 10 to 72 characters and start with upper case letter avoid Jira references in commit messages (unavailable/irrelevant for our customers) TIP: Install pre-commit hooks and run this check when committing (uses the Conventional Precommit Linter).

👋 Hello bekirr12, we appreciate your contribution to this project!

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