Merge bitcoindevkit/bdk#726: [bug-fix] Set the db sync height

08668ac46247d527cc53af5b6f359b1fa4e3b6aa Set the db sync height (rajarshimaitra)

Pull request description:

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  ### Description

  Fixes #719

  Previously we weren't setting the db sync height in populate_test_db
  macro even when current height is provided.. This creates a bug that
  get_funded_wallet will return 0 balance.

  This PR fixes the populate_test_db macro and updates tests which were
  previously dependent on the unsynced wallet behavior.

  ### Notes to the reviewers

  <!-- In this section you can include notes directed to the reviewers, like explaining why some parts
  of the PR were done in a specific way -->

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

  #### Bugfixes:

  * [x] I've added tests to reproduce the issue which are now passing
  * [x] I'm linking the issue being fixed by this PR

ACKs for top commit:
  afilini:
    ACK 08668ac46247d527cc53af5b6f359b1fa4e3b6aa

Tree-SHA512: 1dcc968e4b3551e916b450c5ff2fab6636083f104cc982eb3f7602c624382434e0170d9f0c0a356e6c9c5f834eebe5cb1365b37ef73d7b4ef15d652a364dc2ab

diff --cc src/wallet/mod.rs
Simple merge