[🔧 ts6 migration]: update types for parser types AttrParser

[ala-n]

In the purpose of preparing to the TS6 migration, we need to improve and restrict some of the typing cases in our code base.

Scope:

1. Update types for @attr parser field type to support all popular cases
2. Fix all related problems across the codebase if needed (not recommended to have a migration step here, its bettter cover all current use cases inside type definitions and @attr processing)