d9b9b3dc46Fix InvalidColumnIndex error (Philipp Hoenisch) Pull request description: This query returns 7 rows, so last row is index 6 ### 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 ACKs for top commit: danielabrozzoni: tACKd9b9b3dc46rajarshimaitra: tACKd9b9b3dc46Tree-SHA512: 8a3d8a291daa4af86a2a2eacc31f002972dd9cdb9bf300a4b09e2e015c4a967dc4fa7e925afbcce8b104a01e1d7f7c8cb0badda8e1ac5ade511681f490c719d5