feat: delete build caches after removing dependencies

[ankddev]

• Closes gleam remove could invalidate the build cache #5363
• Now it deletes the entire build directory after removing dependencies via gleam remove

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• The changes in this PR have been discussed beforehand in an issue
• The issue for this PR has been linked
• Tests have been added for new behaviour
• The changelog has been updated for any user-facing changes

[yoshi-monster]

Isn't running gleam clean afterwards way to broad since it also recompiles all dependencies? Wouldn't we just want to invalidate the top-level package?

[ankddev]

Yeah, I was thinking about that, drafted PR for now. Initially I wanted to implemebt it like in the LS, where we clean build directory for LSP mode, current target and current package. It's the information that we don't have in cleanup code. I will try to implement it anyway.