refactor: remove duplicated and unused workflows

[2hoch1]

Description

This PR removes workflows that are no longer necessary.

• lint.yml: Replaced by the test workflow.
• update.yml: Not used and currently runs daily without any purpose.

Since this workflow is still marked as a required check, it cannot be removed in the usual way. Merging this PR may require bypassing the repository's protection rules.

Related Issue(s)

Testing Summary

Test Details

Environment

• Machine OS:

• Phone OS:

• Library Version:

• WhatsApp Web Version:

• Browser Type and Version:

• Node Version:

Type of Change

• Dependency change (package changes such as removals, upgrades, or additions)
• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Non-code change (documentation, README, etc.)

Checklist

• My code follows the style guidelines of this project.
• All new and existing tests pass (npm test).
• Typings (e.g. index.d.ts) have been updated if necessary.
• Usage examples (e.g. example.js) / documentation have been updated if applicable.

[2hoch1]

@pedroslopez you have to force merge this one.