This release contains important dependency updates for `rust-bitcoin` to `0.29` and `rust-miniscript` to `8.0`, plus related crates that also depend on the latest version of `rust-bitcoin`. The release also includes a breaking change to the BDK signer which now produces low-R signatures by default, saving one byte. A bug was found in the `get_checksum` and `get_checksum_bytes` functions, which are now deprecated in favor of fixed versions called `calc_checksum` and `calc_checksum_bytes`. And finally a new `hardware-signer` features was added that re-exports the `hwi` crate, along with a new `hardware_signers.rs` example file.
### Changelog
#### Changed
* Updated dependency versions for `rust-bitcoin` to `0.29` and `rust-miniscript` to `8.0`, plus all related crates. @afilini #770
* BDK Signer now produces low-R signatures by default, saving one byte. If you want to preserve the original behavior, set allow_grinding in the SignOptions to false. @vladimirfomene #779
* Deprecated `get_checksum`and `get_checksum_bytes` due to bug where they calculates the checksum of a descriptor that already has a checksum. Use `calc_checksum` and `calc_checksum_bytes` instead. @evanlinjin #765
* Remove deprecated "address validators". @afilini #770
#### Added
* New `calc_checksum` and `calc_checksum_bytes`, replace deprecated `get_checksum` and `get_checksum_bytes`. @evanlinjin #765
* Re-export the hwi crate when the feature hardware-signer is on. @danielabrozzoni #758
* New examples/hardware_signer.rs. @danielabrozzoni #758
* Make psbt module public to expose PsbtUtils trait to downstream projects. @notmandatory #782
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