chore: Add pt-br as a mandatory language on CI

[tuliomir]

Acceptance Criteria

• The language pt-br must have all translations completed to pass the CI validation
• There should be a way for the developer to set arbitrary languages to this validation locally in dev environment

Security Checklist

• Make sure you do not include new dependencies in the project unless strictly necessary and do not include dev-dependencies as production ones. More dependencies increase the possibility of one of them being hijacked and affecting us.

[Copilot]

Pull Request Overview

This PR ensures that the 'pt-br' translation is enforced as mandatory in CI while also enabling developers to override the strict language setting locally through a CLI argument.

• Added detailed usage documentation for the update_translations script
• Introduced a CLI parameter (--strict-languages) to allow overriding mandatory languages for local development
• Updated the translation check logic to conditionally enforce strict validation based on provided languages

Files not reviewed (1)

• locale/pt-br/texts.po: Language not supported

[Copilot]

When '--strict-languages' is provided with an empty value, splitting it will return [''] instead of defaulting to mandatoryTranslations. Consider adding a check to use mandatoryTranslations if the resulting array is empty or contains an empty string.

Suggested change

	strictLanguages: parameters['strict-languages']?.split(',') || mandatoryTranslations,
	strictLanguages: (parameters['strict-languages']?.split(',').filter(lang => lang) || mandatoryTranslations).length ? parameters['strict-languages']?.split(',').filter(lang => lang) : mandatoryTranslations,

[tuliomir]

Thanks, fixed in 31e8b02