Build: lock file

**Which command failed?** `cargo build --locked --release` **What was the error message?** satoshi@nodebox:~/electrs$ cargo build --locked --release error: failed to parse lock file at: /home/satoshi/electrs/Cargo.lock Caused by: lock file version 4 requires `-Znext-lockfile-bump` **System** OS name and version: Ubuntu 24.04 rustc version: 1.75 cargo version: 1.75 **Compilation** Linking: static Cross compilation: no Target architecture: x86_64