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