(draft) chore: uniffi 0.28.2

[reez]

Description

Updating to uniffi https://github.com/mozilla/uniffi-rs/releases/tag/v0.28.2

Notes to the reviewers

We have to update bitcoin-ffi first, so I'm using my fork branch bitcoindevkit/bitcoin-ffi#28 until that gets merged.

Testing out some of https://mozilla.github.io/uniffi-rs/next/swift/uniffi-bindgen-swift.html

Which is only available in 0.28.2 mozilla/uniffi-rs#2248 (comment)

Changelog notice

Checklists

All Submissions:

• I've signed all my commits
• I followed the contribution guidelines
• I ran cargo fmt and cargo clippy before committing

New Features:

• I've added tests for the new feature
• I've added docs for the new feature

Bugfixes:

• This pull request breaks the existing API
• I've added tests to reproduce the issue which are now passing
• I'm linking the issue being fixed by this PR

[thunderbiscuit]

Love this if it gives you greater control on the resulting library! Does it provide new stuff you'd like to use? Other question: is it only useable if we bump bitcoin-ffi?

[reez]

Does it provide new stuff you'd like to use?

In my initial exploration nothing that was immediately needed, so there's no big rush, but more exploration to be done potentially

Other question: is it only useable if we bump bitcoin-ffi?

TBD, likely based on some more findings from #619