feat: upgrade to bdk version 0.29.0

[notmandatory]

WIP need to update and release bdk_reserves with bdk 0.29 first.

Description

Notes to the reviewers

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
• I've updated CHANGELOG.md

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

[notmandatory]

Closing this very old PR now that this repo is updated to bdk 1.x.