c5afbaa95d ci: update zstd-sys version to work with MSRV 1.63 (Steve Myers)
929b5ddb0c refactor(esplora): better variable naming and docs (志宇)
216648bcfd chore(esplora): Clarify consistency guarantees (LLFourn)
63fa710319 fix(esplora): reuse returned height instead of zipping (志宇)
6f824cf325 test(esplora): introduce test cases for `update_local_chain` (志宇)
f05e8502e6 feat(esplora): greatly simplify `update_local_chain` (志宇)
Pull request description:
Fixes#1199
### Description
After a second look at the `update_local_chain` implementations, it was clear that they were over complicated. This PR simplifies the `EsploraExt::update_local_chain` method(s) of the `bdk_esplora` crate and adds a whole bunch of tests.
### Notes to the reviewers
The description of #1199 is very brief, however @danielabrozzoni mentioned about potentially-problematic logic with `ASSUME_FINAL_DEPTH`. The logic was indeed convoluted and it did not need to be that way. This PR removes the need for `ASSUME_FINAL_DEPTH`.
### Changelog notice
Fixed
- Simplified `EsploraExt::update_local_chain` logic.
### 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:
~* [ ] This pull request breaks the existing API~
~* [ ] I've added tests to reproduce the issue which are now passing~ (there are now lots of tests though)
* [x] I'm linking the issue being fixed by this PR
ACKs for top commit:
evanlinjin:
ACK c5afbaa95d
notmandatory:
utACK c5afbaa95d
Tree-SHA512: f588493a4643f0f68d3181f27adf91793d4e336be6e853a26289e0916ed83169e1067260b75e627f190842f691ec095e668c0b799ca80e7da2849dd28de32754