Migrate test suite to Weaver

[Hombre-x]

I'm opening the issue to discuss a bit the migration to the Weaver framework as suggested by @armanbilge

The two major milestones are both migrating from the toolkit testing library from MUnit to Weaver, and the second part will be chaging the toolkit test suite itself.

Progress:

• Change test framework library: MUnit => Weaver
• Update test suite

This was briefly discussed on Discord, so now is the time to delve deeper into the details. 😆

[armanbilge]

Linking to some of the previous discussions!

• Which libraries? #1 (comment)
• https://discord.com/channels/632277896739946517/920140670394589224/1119319918685454467

[Hombre-x]

Is this going to be a breaking change? Asking for users that imported MUnit previously on old versions 🙃

[armanbilge]

Yes! We should bump the tlBaseVersion.